2012 - Geoinformatics

2012 - Geoinformatics 2012 - Geoinformatics

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Magazine for Surveying, Mapping & GIS Professionals<br />

8<br />

December<br />

2 0 1 2<br />

Volume 15<br />

TerraGo Intergeo Report MapBox<br />

Terrestrial Laser Scanning Specifications<br />

Data Collection at the North Pole


I believe in reliability.<br />

The Leica Viva GNSS – this exceptionally rugged,<br />

easy-to-use instrument with a self-explanatory<br />

interface is a fine example of our uncompromising<br />

dedication to your needs. Reliability: yet another<br />

reason to trust Leica Geosystems.<br />

Reliability means peace of mind –knowing that<br />

your equipment will never let you down.<br />

Regardless of the situation, you want to be able to rely on your<br />

equipment and the results you get. That’s why Leica Geosystems<br />

places great emphasis on dependability. Our comprehensive<br />

spectrum of solutionscoversall your measurement needsfor<br />

surveying, engineering and geospatial applications. And they are<br />

all backed with world-class service and support that delivers<br />

answers to your questions. When it matters most. When you<br />

are in the field. When it hasto be right.<br />

You can count on Leica Geosystems to provide a highly reliable<br />

solution for every facet of your job.<br />

Leica Geosystems AG<br />

Switzerland<br />

www.leica-geosystems.com


GeoInformatics is the leading publication for Geospatial<br />

Professionals worldwide. Published in both hardcopy and<br />

digital, GeoInformatics provides coverage, analysis and<br />

commentary with respect to the international surveying,<br />

mapping and GIS industry.<br />

GeoInformatics is published<br />

8 times a year.<br />

Editor-in-chief<br />

Eric van Rees<br />

evanrees@geoinformatics.com<br />

Copy Editor<br />

Elaine Eisma<br />

Editors<br />

Florian Fischer<br />

ffischer@geoinformatics.com<br />

Huibert-Jan Lekkerkerk<br />

hlekkerkerk@geoinformatics.com<br />

Remco Takken<br />

rtakken@geoinformatics.com<br />

Joc Triglav<br />

jtriglav@geoinformatics.com<br />

Contributing Writers:<br />

Cornelius König, Saviour Formosa, Elaine Sciberras,<br />

Janice Formosa Pace, Luigi Colombo, Barbara<br />

Marana, Bonnie Bogle, Henk Key, Jim Baumann,<br />

Remco Takken, Gregory Marler.<br />

Columnists<br />

Raj Singh, Matt Sheehan<br />

Finance<br />

finance@cmedia.nl<br />

Marketing & Sales<br />

Ruud Groothuis<br />

rgroothuis@geoinformatics.com<br />

Subscriptions<br />

GeoInformatics is available against a yearly<br />

subscription rate (8 issues) of € 89,00.<br />

To subscribe, fill in and return the electronic reply<br />

card on our website www.geoinformatics.com<br />

Webstite<br />

www.geoinformatics.com<br />

Graphic Design<br />

Sander van der Kolk<br />

svanderkolk@geoinformatics.com<br />

ISSN 13870858<br />

© Copyright <strong>2012</strong>. GeoInformatics: no material may<br />

be reproduced without written permission.<br />

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GeoInformatics has a collaboration with<br />

the Council of European Geodetic<br />

Surveyors (CLGE) whereby all individual<br />

members of every national Geodetic<br />

association in Europe will receive the<br />

magazine.<br />

About Intergeo<br />

In this issue you will find coverage on the biggest geospatial trade fair in the industry,<br />

namely the annual Intergeo Conference and Trade Fair. The event has changed<br />

a lot in the last few years and will, more than likely, continue to change in the<br />

future. The event gives a good overview of the current state of the industry, which,<br />

of course, is no different from how other industries are doing in the current economic<br />

climate. There have been a lot of mergers and acquisitions by the major<br />

surveying and GIS companies, which is reflected in the decreased number of<br />

exhibitors. For example, the acquisitions of Trimble and Hexagon. Software companies<br />

were a different story at Intergeo: only Esri had a large booth, whereas<br />

Bentley Systems was no longer present at the trade fair at all. Autodesk used to<br />

have a very large booth, but is it really appropriate for software companies to<br />

have this sort of presence on a trade fair that is dominated by hardware for data<br />

collection in the field<br />

Software seemed to be less present overall, which resulted in a much smaller<br />

OSGeo Park than in recent years. Is it possible that open source is imploding as<br />

well – and, if so, why is this It would be interesting to know why this is. What I<br />

sense is, that on the one hand the industry is growing in terms of players (organizations,<br />

applications, markets, vendors and service providers), and on the other<br />

hand, at the same time, is very fragmented. What I mean by this is that there are<br />

more and more geospatial conferences and meetings, for example, but for a smaller,<br />

specified or regional audience. Is this a bad thing I don’t think so, but to say<br />

exactly what belongs to the geospatial market and what doesn’t, isn’t very easy.<br />

It is unclear because geospatial companies are moving away from their core business,<br />

to new markets such as business intelligence (Esri) and construction software<br />

(Trimble). They are also incorporating new social media and, making broader use<br />

of general IT. This kind of innovation is what sets these companies apart from<br />

open source.<br />

Intergeo is also wrestling with this phenomenon of fragmentation, which<br />

is reflected in the topics discussed during the press conference and<br />

which is covered in more detail in this issue. ‘When do we need a<br />

surveyor’ This seems like an obvious question, but the reality is<br />

more complex. What was striking was that in North America, the<br />

cloud is already a technology that has been fully embraced, whereas<br />

the complete opposite is true for Europe. Why is this so Is it<br />

because the cloud is still a geographically located and static phenomenon,<br />

as opposed to what we were told it would be For<br />

more on this topic, please refer to the interview with Safe<br />

Software’s Don Murray in this issue.<br />

For the future, I think Intergeo has a great deal of potential,<br />

since it combines the knowledge of professionals in the industry<br />

with a large trade fair, which showcases the latest new<br />

products. This doesn’t go unnoticed elsewhere, judging<br />

from the increasingly growing presence from North<br />

American media. The event seems to get more international<br />

every year, attracting a more geographically<br />

diverse crowd, which is a good sign. If the organization<br />

can successfully capture the changing<br />

nature of the industry as a whole, by<br />

working together even more closely with<br />

media partners, the industry itself, interest<br />

groups, non-governmental organizations<br />

and science, then the event can become even<br />

more influential and important than it already is.<br />

Enjoy reading,<br />

Eric van Rees<br />

evanrees@geoinformatics.com<br />

Photography: www.bestpictures.nl<br />

3<br />

December <strong>2012</strong>


C o n t e n t<br />

At the cover:<br />

The cover image uses data from the Township of Langley to illustrate how basic point<br />

cloud data can be colored. The original uncolored data on the left side was colored by<br />

using FME technology (www.safe.com) to overlay an orthophoto and apply RGB figures<br />

from each raster pixel to the points within pixel extents (the colored output is on the<br />

right).<br />

A r t i c l e s<br />

From 3D Point Clouds to CAD Map 10<br />

Securing the Spatial Environment 18<br />

Capturing Cape Town 20<br />

Safe Software 22<br />

Terrestrial Laser Scanning Specifications 28<br />

Make Web Maps with MapBox 34<br />

E v e n t s<br />

Intergeo Press Conference <strong>2012</strong> 32<br />

Intergeo Trade Fair <strong>2012</strong> 36<br />

Partners and Best Practices 44<br />

State of the Map 47<br />

N e w s l e t t e r<br />

CLGE newsletter 6<br />

The ISPRS Foundation 42<br />

C o l u m n s<br />

Smart Cities and Cooperation 27<br />

Mobile GIS in <strong>2012</strong> 48<br />

I n t e r v i e w s<br />

Collecting Data Under Harsh Conditions 14<br />

TerraGo 24<br />

Long-Term Geospatial Data Storage 40<br />

C a l e n d a r / A d v e r t i s e r s I n d e x 50


Scalypso is a new developed<br />

software for the evaluation of<br />

3D terrestrial laser scan data.<br />

10<br />

The software combines the experience<br />

of 10 years work in<br />

3D laser scanning and 3D modelling.<br />

The evaluation of the<br />

3D scan data will be done in a<br />

photorealistic 2,5D view and<br />

not in the point cloud.<br />

Safe Software’s President and<br />

Co-founder Don Murray talks<br />

22<br />

about recent releases and how<br />

the company is wrapping their<br />

heads around real-time data<br />

feeds, LiDAR, non-relational<br />

data tables and cloud<br />

computing.<br />

Getmapping,<br />

20<br />

a company that<br />

produces its own vertical aerial<br />

photography, oblique photography<br />

and height data,<br />

captured and delivered over<br />

2500 km 2 of high resolution<br />

(6.25cm) imagery covering<br />

the entire City of Cape Town<br />

Metropolitan area.<br />

Last April, a team of researchers<br />

went to the North Pole<br />

14<br />

for a scientific program, where<br />

they performed data collection<br />

and measurements of weather<br />

data, ice-sea drift and plankton.<br />

The area’s climatic conditions<br />

required state-of-art<br />

equipment.<br />

The world’s most important<br />

conference and trade show for<br />

geodesy, geo-information and<br />

land management attracted<br />

36<br />

around 16,000 Geomaticand<br />

GIS professionals to<br />

Hanover, Germany. A look at<br />

this year’s trends and topics.<br />

44<br />

With as many as ten sessions<br />

going on at once, every attendee<br />

could choose his or her own<br />

individual programme of<br />

Technical Workshops and User<br />

Presentations at Esri’s European<br />

User Conference in Oslo.<br />

32<br />

Wednesday October 10 was<br />

the date for the yearly press<br />

conference at the Intergeo<br />

Conference and Trade Fair,<br />

organized by DVW e.V. - the<br />

German Society for Geodesy,<br />

Geoinformation and Land<br />

Management.<br />

Striving to develop a baseline<br />

spatial information sys-<br />

18<br />

tem for cross-domain thematic<br />

analysis, Malta has<br />

embarked on a project<br />

aimed at integrating the<br />

environmental themes in their<br />

wider aspect: the natural,<br />

physical and social domains.


N e w s l e t t e r<br />

Let’s fight the Baker Syndrome<br />

CLGE and INTERGEO, an excellent Mix<br />

From 8 to 14 October <strong>2012</strong>, CLGE had a very busy and successful week. INTERGEO, the 3rd Conference<br />

of the European Surveyor, the 2nd European Students meeting and the Ist European Students contest,<br />

followed by the Autumn CLGE General Assembly.<br />

Jean-Yves Pirlot opens the Award Ceremony of the Ist CLGE Students Contest<br />

CLGE was indeed a major player at the<br />

annual INTERGEO fair and following this,<br />

has organized its second General<br />

Assembly of <strong>2012</strong>, including elections for the<br />

appointment of a new Executive Board.<br />

INTERGEO secured a lot of visibility for CLGE.<br />

President Pirlot was invited to give an address at<br />

the opening of this event. He insisted on the absolute<br />

need for associations to cooperate and,<br />

whenever possible, to join. He stressed the important<br />

role of the Surveyor at a local, regional and<br />

global level.<br />

The ‘baker syndrome’ was introduced at the 3rd<br />

Conference of the European Surveyor. While all<br />

surveyors know exactly what a baker does, most<br />

bakers do not really know what surveyors do,<br />

although they are as important for society as bakers<br />

are. CLGE’s aim must be to raise the profile<br />

of the profession and to ensure they appear on<br />

the radar of the policy makers and the general<br />

public. The conference offered the ideal opportunity<br />

to compare different systems of ownership<br />

protection in Europe and to define the pros and<br />

cons related to these approaches. Needless to<br />

say, the German and Swiss systems were the most<br />

appealing and many of the specialists who took<br />

part in the discussions were assured in their belief<br />

that a generalization of the legal cadaster in<br />

Europe would have very beneficial effects.<br />

The Conference was an ideal occasion for the<br />

solemn adoption of the European Code for the<br />

Measurement of Buildings. The code will be promoted<br />

via the European Real Estate Area Label<br />

(www.euREAL.eu). This topic will be covered in<br />

one of our next editions.<br />

Another highlight of CLGE’s participation in<br />

INTERGEO was the second European Students<br />

contest. Since 2009, CLGE has organized these<br />

meetings, with the aim to motivate young surveyors<br />

to take part in the shaping of their professional<br />

future. This time, 280 students from 10 countries<br />

were able to take part in the event. They<br />

gathered at the first CLGE Students Contest<br />

awards ceremony, where prizes were given to<br />

the authors of two papers. The first was in the<br />

field of Geodesy and Topography and the second<br />

in the field of GIS and Mapping. For this first<br />

edition 11 papers were sent in, which was a very<br />

promising start. All the papers are available on<br />

www.clge.eu. There was no ranking established<br />

for the non-awarded papers, but all the participants<br />

were, of course, warmly thanked by the<br />

organizers. The support given by the DVW<br />

President Thöne will allow a broadening of the<br />

contest in the coming years. The students’ gathering<br />

was the occasion for CLGE President Pirlot to<br />

stress the extent of the benefits of INTERGEO. He<br />

sees it as an ideal platform for the continuous professional<br />

development of his members, as a platform<br />

for business and networking and as a platform<br />

from where initiatives can be launched with<br />

the aim to increase CLGE’s and the European surveyors’<br />

visibility.<br />

The CLGE General Assembly was also very successful.<br />

Once again, the organization of workshops<br />

shaping the future of the association, were<br />

very well received. Additionally, a new board<br />

was appointed for the election period <strong>2012</strong> –<br />

2014. The Bureau was unanimously confirmed<br />

by acclamation and thanked for the work done<br />

in the previous period. Vice-President Leiv-Bjarte<br />

Mjøs of Norway, was also reelected. Danko<br />

Markovinović from Croatia and Pedro Ortiz Toro<br />

from Spain are the two incoming CLGE Vice-<br />

Presidents, who complete the board.<br />

6<br />

December <strong>2012</strong>


N e w s l e t t e r<br />

4th International Training Course in Topography<br />

for Young Surveyors<br />

The course organized by CNGeGL in cooperation with S.P.A. Geoweb and with local support from the<br />

Spanish Land surveyor’s Association took place in Madrid, from 17 to 28 September <strong>2012</strong>.<br />

Fotograph of the group in the entrance of the Royal Observatory Museum in Madrid.<br />

Hello, Hola (Spanish), Ciao (Italian), Përshendetje (Albanian),<br />

你 好 (Chinese), Zdravo (Montenegrin), Zdravo (Macedonian),<br />

Bonjour (Belgium), Γεια σου (Greek), Tere (Estonian),<br />

مالسلا (Danish), Merhaba (Turkish), Guten Tag (German), Goddag<br />

(Russian), (Moroccan), Pozdravljeni (Slovenian), Привет مكيلع<br />

Buna Ziua (Moldavian). We don’t think that any of you has ever<br />

experienced such a wonderful greeting and it comes from young<br />

surveyors in Madrid.<br />

First of all we would like to thank all the people, associations and<br />

authorities who made this two weeks long course possible. It has<br />

been a great opportunity and a wonderful life experience for fifty<br />

young surveyors from sixteen European countries.<br />

Many of us did not know what to expect from this course, as it was<br />

our first international community meeting involving different cultures<br />

and professional habits and we weren’t sure if we could manage<br />

to collaborate together.<br />

After the opening ceremony and the official speeches, our study<br />

programme began. During the first week we were mentored by<br />

seven teachers from Italy, Greece, Spain, Turkey and the UK, who<br />

taught us about different kind of instruments, techniques and applications,<br />

within a variety of areas of the surveying profession.<br />

Subjects covered included topographical and geomatic surveys,<br />

orthophoto production, GNSS surveys and deformation, photogrammetric<br />

and LIDAR survey, scanner and 3D photogrammetric<br />

or survey of artistic and heritage assets.<br />

For the first three days of the course classroom lessons were scheduled<br />

and covered GNSS surveys and photogrammetry. We had the<br />

chance to learn about some new technologies and applications.<br />

Our first field surveying journey came on Thursday, and took place<br />

at Debod Temple. It gave us an idea as to what an integrated survey<br />

is and also brought the group closer, whilst increasing our<br />

knowledge of surveying tasks. Debod is an Egyptian temple which<br />

was a present from Egypt to Spain. It was moved in 1968 stone<br />

by stone and it is located in downtown Madrid. Once the survey<br />

was done, we still had time in the afternoon for a practical modelling<br />

lesson with the data obtained. This linked with Friday’s topic,<br />

which was LIDAR and aerial surveys.<br />

On Saturday morning, we discovered how our colleagues in the<br />

past worked, as we visited the Royal Observatory Museum in<br />

Madrid. We saw the new Herschel’s telescope, the library, the<br />

Latest News Visit www.geoinformatics.com December <strong>2012</strong><br />

7


N e w s l e t t e r<br />

windy morning, it didn’t stop us from surveying the park and then,<br />

in the afternoon, we did the post-processing calculations.<br />

Midweek we began to notice a feeling of sadness, as the course<br />

was coming to an end. After a complete class dedicated to GIS,<br />

some of us took advantage of our remaining time together and<br />

attended a football match in Santiago Bernabeu stadium.<br />

Unfortunately, Christiano Ronaldo was not playing and some of the<br />

girls were pretty disappointed. The match was great though and a<br />

fabulous experience, which we will remember for the rest of our<br />

lives. The rest of the group went to a local music pub guided by a<br />

Spanish member of the class from Madrid and watched football<br />

and enjoyed the traditional fulfilling tapas.<br />

CLGE President, Jean-Yves Pirlot, addressing the students said “Please, when you go home, spread the word<br />

that we need the commitment of all surveyors for the future of our beautiful and proud profession. Be<br />

aware that during this course you are building a network of collegiality and friendship that you will never<br />

forget… and keep in mind, we have to build on this for the best future of the Surveying Profession.”<br />

meridian circle and clocks’ room, and watched some videos inside<br />

the Science of the Earth and Universe room. As a conclusion to our<br />

week-end activities, Sunday was spent sight-seeing and looking at<br />

some of this country’s wonderful treasures in the imperial city of<br />

Toledo.<br />

After almost a week of work we could certainly say that this course<br />

was achieving its target; once we had broken the ice everyone<br />

managed to co-operate well and establish good social relationships.<br />

We started the second Monday a little tired, due to the intense<br />

weekend and a little too much curiosity about Madrid’s night-life!<br />

Despite this, we started the week as a more connected group, and<br />

with great enthusiasm; ready to learn more things together.<br />

We had a long day in front of our laptops preparing for the next<br />

day’s class. On Tuesday we were scheduled to practice measuring<br />

with GPS in the Juan Carlos I park. Although it was a cold and<br />

Thursday morning in the classroom was very interesting, as we were<br />

looking at a lot of structural monitoring graphics examples. Having<br />

finished lunch, the lesson on land registry and cadastre started. This<br />

was an introduction to Friday’s class.<br />

After we finished studying, we prepared a good-bye party, as some<br />

of the participants were leaving a day earlier than the rest. We had<br />

a party with guitar playing, singing, dancing and talked well into<br />

the night. To make the evening even more special, everyone tried<br />

to bring something traditional from their culture. Our Moroccan colleagues<br />

brought some tea and small cakes from Meknes city. The<br />

Spanish citizens introduced us to Rioja wine and their famous pipas.<br />

We also had Belgian and international beers!<br />

Finally the second Friday arrived and, after a visit to the Spanish<br />

Land Agency, we returned to our hotel for a quick lunch and to rest<br />

a little before attending the closing ceremony. After the officials had<br />

given their speeches, we were surprised with a video of us in the<br />

opening ceremony. This was closely followed by the presentation<br />

of the diplomas. We stayed to talk to the officials in the hall of the<br />

hotel, enjoying a beautiful cake, which had been prepared for the<br />

occasion. We then had time to go up to our rooms to change into<br />

our ‘Sunday best’ before leaving together to attend the closing dinner.<br />

This was held in a very nice restaurant in the centre of Madrid.<br />

Jamón, queso, paella and good wine were enjoyed by all.<br />

Back at the hotel, sadness surfaced once again, as the time had<br />

come to say good bye to our friends. This was our last opportunity<br />

to see each other, as some of us had to catch planes early in the<br />

morning. We were happy at the thought of seeing our families again<br />

after fifteen days, but this was tinged with sorrow as these wonderful<br />

two weeks together came to an end. Saturday arrived, of course,<br />

and we left in the rain …<br />

And now, a few days after this very pleasant and enriching experience,<br />

we can say one thing for certain: Good bye dear friends.<br />

You will see us again soon! These two weeks will never be forgotten!<br />

In his opening address, CNGeGL President, Fausto Savoldi, pointed out “The presence of our international<br />

organisation is important, because we have completely understood that this is an exceptional occasion<br />

for the professional training of the young surveyors. Their competence must be homogeneous in each<br />

part of the world.”<br />

8<br />

December <strong>2012</strong>


®


A r t i c l e<br />

Evaluating the Scan Project<br />

From 3D Point Clouds to CAD<br />

Scalypso is a new developed software for the evaluation of 3D terrestrial laser scan data. The software<br />

combines the experience of 10 years work in 3D laser scanning and 3D modelling. The evaluation<br />

of the 3D scan data will be done in a photorealistic 2,5D view and not in the point cloud. The 2,5D<br />

view will be generated out of the diffuse reflectance data or out of the coloured point cloud.<br />

By Cornelius König<br />

Greystep picture<br />

The 2,5D view makes it easy for other<br />

office workers to evaluate the scan project.<br />

In addition to that there is no need<br />

anymore to navigate in the 3D point cloud.<br />

This kind of evaluation helps you to save<br />

time and money.<br />

Scalypso consists out of four different programmes<br />

and two modules and is build up<br />

modular. By adding other modules you can<br />

expand the software basis version for you<br />

upcoming needs and projects. The main programme<br />

is the Modeler. All coming evaluation<br />

tools are combined in that programme.<br />

Some of the main functions are the registration<br />

and geo registration of sole scans via<br />

bowl or measuring marks. Real time transfer<br />

of 3D points, 3D lines, 3D circle, 3D polygons,<br />

3D areas, cuboids into a CAD aim system<br />

like Auto CAD or MicroStation. The<br />

automatic mash of objects for the generation<br />

of profiles along the coordinate axis is also<br />

a very helpful tool for the upcoming evaluation.<br />

It always depends on your needs which<br />

tools suit your tasks and which of them are<br />

necessary for your special assignment.<br />

To work with the Modeler you first have to<br />

convert your laser scan data into the<br />

Scalypso format. However every scan format<br />

can be transformed and in the uniform<br />

workflow a fast and easy evaluation is guaranteed.<br />

The Viewer is a free tool for the customers<br />

to get an easy eye on the data. With<br />

that, everyone involved in the assignment<br />

can have a quick view on first results and<br />

misunderstandings can be prevent right in<br />

the beginning. If you want to navigate, manage<br />

and select your scans easily, the<br />

Navigator would suit well into your workflow.<br />

The Navigator allows you to calculate<br />

layers und draw maps of your scan project.<br />

We also developed a pipe module and a<br />

building information modelling (BIM) module.<br />

The test campaign<br />

In spring 2011 our company had the<br />

assignment to measure and evaluate for the<br />

Berlin City Cleaning Company (BSR) the east<br />

pump.<br />

The BSR is the largest urban waste disposal<br />

contractor in the EU and has its main office<br />

in Berlin-Tempelhof. The place of work was<br />

the waste devaluation ground in Berlin-<br />

Ruhleben.<br />

The east pump is part of the large pumping<br />

system in the BSR area. First of all we had<br />

so survey the whole room with all its different<br />

characteristics and in the following steps<br />

we started the evaluation with our software<br />

solution system Scalypso.<br />

Our customer made clear, that he wanted a<br />

CAD model with all details containing every<br />

pipe, every room geometry and every other<br />

useful detail. They needed an as-completed<br />

drawing for an overview about all engines.<br />

The aim was it, to develop out of the 3D<br />

point clouds with the help of the evaluation<br />

software Scalypso a CAD plan. Every window,<br />

every door and every offset should be<br />

10<br />

December <strong>2012</strong>


A r t i c l e<br />

Map<br />

Pumping system<br />

evaluated and transformed into a CAD programme.<br />

For our customers it was very important that<br />

they had not to stop the machines and that<br />

the surveying was done without any interruption<br />

of the normal working process.<br />

Therefore the use of a 3D laser scanner is<br />

perfect. The contact free system allows all<br />

machines to work and we received in a comparatively<br />

short time all need able information.<br />

No machine has to stop and nothing<br />

has to be changed in the daily process.<br />

The whole area contained about ten rooms<br />

with the whole pumping systems. Because<br />

of all the pipes and constructions the task<br />

was perfectly to test all the software functions.<br />

A two head measurement group<br />

arrived in Berlin and started the work.<br />

Firstly the workers allocated measuring<br />

marks all over the rooms for the geo referenzatioin<br />

afterwards. With the help of the<br />

measuring marks the scans were transferred<br />

into one common coordinate system. Shortly<br />

after all necessary arrangements the survey<br />

began. Seventeen different scan positions<br />

later all data was captured and the workers<br />

left the area and went back to the office. At<br />

the end of the day lasting several hours of<br />

measuring the workers left the BSR area and<br />

went back to the headquarter to star the<br />

evaluation.<br />

Evaluation<br />

Before we started the evaluation the row<br />

data had to be converted into the software<br />

own *.syo format. After uploading the scanner<br />

files just start the converter and the programme<br />

will work. All the established scanner<br />

formats can be converted such as Riegl,<br />

Faro or Z&F.<br />

The evaluator Stefanie Peda said: “The BSR<br />

project was in its volume quite large and the<br />

whole evaluation took definitely a lot of<br />

time.” For the evaluation of the east pump<br />

two modules were especially important. The<br />

Pipe Module and the building information<br />

modelling module (BIM). Both modules were<br />

used quite often during the evaluation<br />

Detail picture<br />

Latest News Visit www.geoinformatics.com December <strong>2012</strong><br />

11


A r t i c l e<br />

because of the large amount of pipes and<br />

the BIM module because of the many different<br />

rooms.<br />

After we generated the pipe runs, we transferred<br />

them in real time into our CAD system.<br />

An *.xml interface could export the<br />

data also into other plant construction applications.<br />

Different functions simplified the<br />

work with the pipe runs. Very helpful for our<br />

tasks were the different fittings, T-pieces,<br />

welding or flange connections. These connections<br />

can be fit easily in the existing pipe<br />

run.<br />

The BIM module reconstructs complete building<br />

geometries after you generated them<br />

with your 3D laser scanner. With only a couple<br />

of clicks we reconstructed the whole piping<br />

rooms with all doors, windows and other<br />

geometric openings.<br />

Every evaluator has its own strategy to evaluate<br />

such a project. Stefanie Peda said:<br />

“First of all I mark all important pieces and<br />

add polygons, rectangles or ellipses.<br />

Afterwards I start to export room geometries<br />

with the help of the BIM module to my CAD<br />

air system. That makes it easy to have a first<br />

overview about what to come. The ground<br />

plan helps a lot to navigate through the<br />

scans.”<br />

After she made the ground plan she added<br />

pipes and landing platforms into the CAD<br />

model. “With all its constructions the evaluation<br />

was a large and comprehensive task.<br />

I needed about two weeks time to evaluate<br />

the pipe room with all its details.” Miss Peda<br />

tells. After two weeks of evaluation everybody<br />

was convinced about the result. The<br />

finished CAD plan was delivered to our customers<br />

the BSR.<br />

Conclusion<br />

In conclusion the BSR project was a good<br />

project to test nearly all software functions.<br />

You always need good staff, good hardware<br />

and also a good software to get a venture<br />

like this to an good end.<br />

“Working in such a huge complex is always<br />

interesting and if everything works out and<br />

everything was successful, we can say that<br />

it was a good project.” The director Ralf<br />

König said. “The pipe and BIM module<br />

worked - like all other functions - really well<br />

and everyone was happy with the result.”<br />

In a short time the whole pipe area was surveyed<br />

and the regular work could be continued.<br />

Back in the office we evaluated all<br />

necessary areas and exported them to our<br />

CAD system.<br />

Ralf König said: “All in all the assignment<br />

in Berlin with the BSR was a great success<br />

and everything worked out very well. The<br />

project was for everyone a good experience<br />

and we hope that we could suite all needs.”<br />

Stefanie Peda reflects afterwards: “I can say<br />

that I am very happy about how everything<br />

worked out and we can be proud of the<br />

result. That is what counts in the end.”<br />

Dipl.-Hist Cornelius König, Scalypso Potsdam, Germany.<br />

For more information, have a look at www.scalypso.com


I n t e r v i e w<br />

North Pole Expedition<br />

Collecting Data Under Harsh<br />

Last April, a team of researchers went to the North Pole for a scientific program, where they performed<br />

data collection and measurements of weather data, ice-sea drift and plankton. The area’s climatic<br />

conditions required state-of-art equipment.<br />

By the editors<br />

First measurements at the North Pole<br />

Measuring radioactivity<br />

Study Area<br />

The geographical North Pole, due to its location in the middle of the<br />

Arctic Ocean, is a very relevant spot for studies for scientists. It is<br />

important to follow the North Pole’ sea-ice coverage evolution, especially<br />

its thickness, density and drift. What happens in the Arctic<br />

Ocean affects the rest of the world’s weather. The location of the<br />

North Pole, in the middle of this frozen ocean is also important for<br />

other studies, such as mercury data, microbiology and more.<br />

Last April, a team of researchers went to the North Pole to conduct<br />

scientific research, where they performed data collection and measurements<br />

of weather data, ice-sea drift and plankton. The team was<br />

composed of a former polar logistics engineer for the French and<br />

German Polar Institutes, Alan Le Tressoler and Julien Cabon, a journalist<br />

who has previous experience of the Arctic.<br />

The North Pole is a very difficult spot to go to and survive, says Alan<br />

Le Tressoler: “the sea-ice is not flat, and is full of open-water that<br />

needs to be crossed, either with the pulks or by swimming. You can<br />

also find compression ridges, which are composed of blocks of seaice<br />

that sit on each other, up to over 10 meters high.” Then there’s<br />

the extreme cold; the position can be very windy and one can often<br />

have polar bears as neighbors. Satellites are not exactly positioned<br />

above the geographic North Pole, so there’s a black spot of no data<br />

around the area, making human presence the only way to obtain<br />

that data and to get the samples, says Le Tressoler.<br />

Data Collection<br />

Every day, the team performed many hours of data collection, consisting<br />

of GPS data, taken as often as possible, as the sea-ice was<br />

constantly drifting, due to the wind and sea currents. Weather data<br />

was collected by a handy weather station. It was sometimes difficult<br />

to do sampling of snow and sea-ice, depending of the weather situation,<br />

says Le Tressoler: “we had to take off head protection in order<br />

to put on a special mask, in order not to contaminate the samples.<br />

We also had to change our “warm” gloves for scientific plastic<br />

gloves”.<br />

Collecting the plankton and sea water was also a bit difficult sometimes.<br />

Le Tressoler: “First of all, you have to make a big hole in the<br />

sea-ice in order to be able to put the big plankton net in the water.<br />

In some areas the sea-ice thickness is 1, 5 meters and it’s very hard<br />

14<br />

December <strong>2012</strong>


I n t e r v i e w<br />

Conditions<br />

Russian helicopter MI8<br />

ice to drill through with a manual ice-drill. Then, we saw a big square<br />

with a manual ice-saw. You have to cut it in many pieces, as one<br />

big one would be far too heavy to take out or push down.” That job<br />

could sometimes take almost a day. Using the same hole the day<br />

after would require opening it again, since the sea-ice thickness in<br />

the former hole would rise approximately 20 cm in 12 hours.<br />

Water properties such as temperatures, salinity and density were<br />

calculated. Then, we would put plankton nets in or a Niskin bottle<br />

to take water samples from different depths. The equipment was put<br />

down to different depths, with the maximum depth being 130 meters.<br />

Each time the equipment was brought back manually, the team’s<br />

trousers and gloves froze. Le Tressoler is optimistic about the weather<br />

during the work: “by chance the weather was very nice during<br />

the expedition, just a few days of wind and a record of “only” -<br />

36°C.”<br />

Data Analysis<br />

This kind of data has been rarely collected in this area, some of it<br />

almost never, and certainly not over such a long period. The expedition<br />

lasted “only” 3 weeks, but that was the maximum possible given<br />

the climatic and logistic circumstances.<br />

The data was first analyzed ‘on-site’ in a tent immediately after data<br />

collection thanks to the computer. If something “strange” or interesting<br />

was collected, this data was sent to the scientists who could then<br />

tell them what to sample for the next day. The most visual data on<br />

the computer was the sea-water data, says Le Tressoler: “we could<br />

see that there was a cold layer of sea just under the surface, then a<br />

few meters of “warm water”, and then the water became colder and<br />

colder into the deep. At some depths there were some changes,<br />

meaning that it should have been a great place to collect a lot of<br />

plankton.”<br />

After the expedition, the data and samples were transmitted to the<br />

lab directly. Le Tressoler says that the scientists studying the plankton<br />

were happy with the samples, as they are species that were not<br />

expected in this area so early, and in such a large quantity.<br />

Technology use<br />

For data collection, the team used the compact Algiz XRW ultrarugged<br />

notebook, under conditions which tested not only human<br />

endurance but also that of the quality and durability of the equipment.<br />

According to Le Tressoler, the computer was key to the suc-<br />

Latest News Visit www.geoinformatics.com December <strong>2012</strong><br />

15


I n t e r v i e w<br />

Scientific measurements with the Algiz XRW<br />

cess of the expedition: “without the computer,<br />

we could not have collected the scientific<br />

data and wouldn’t have been able to send<br />

daily pictures and comments about the expedition.“<br />

The computer had also a very important<br />

safety function: “we could directly connect<br />

our satellite phone to the computer,<br />

which would then work even with a flat battery.<br />

It could also be used to send photos or<br />

video of a possible bad injury to a doctor<br />

in a hospital in order to help if first aid was<br />

required.”<br />

The expedition expected a lot from the<br />

equipment: the team was looking for a powerful<br />

computer that could endure very cold<br />

weather and snow, without being too heavy.<br />

It also needed to be readable sunlight, could<br />

connect to the scientific instruments, and<br />

have powerful batteries, since they could not<br />

be recharged in the field. “The Algiz XRW<br />

was perfect for the expedition, since everything<br />

worked perfectly. The touch-screen of<br />

the computer was also fantastic, as we could<br />

work with the computer without having to<br />

take our different layers of gloves.”<br />

In cold environments, batteries are the main<br />

problem: it takes only a few minutes before<br />

they go down: “we needed batteries for the<br />

computer that can hold power for a long<br />

time when collecting water data. The batteries<br />

of the Algiz XRW are very impressive.<br />

They last forever in the cold environment,<br />

much more than what we thought was possible.”<br />

The next project<br />

A new project has already been planned for<br />

Spring 2013, on the west coast of Green -<br />

land. It is scheduled to last until summer<br />

2014. There is a lab onboard and different<br />

scientific equipment which will be used to<br />

mainly study sea-ice in this area. Two people<br />

will be onboard all year long: Alan Le<br />

Tressoler as skipper and expedition leader<br />

and Elin Austerheim, a marine biologist and<br />

scientific coordinator. Le Tressoler: “the boat<br />

can take up to five scientists. Of course, the<br />

Algiz XRW will be onboard as one of the<br />

most important pieces of equipment for the<br />

expedition: if outside temperatures should<br />

drop down to -45°C, it will not be that warm<br />

inside either, despite the heater; just above<br />

0°C.”<br />

Internet: www.handheldgroup.com<br />

16<br />

December <strong>2012</strong>


A r t i c l e<br />

A Socio-Technic Enterprise<br />

Securing the Spatial Environment<br />

Striving to develop a baseline spatial information system for cross-domain thematic analysis, Malta<br />

has embarked on a project aimed at integrating the environmental themes in their wider aspect: the<br />

natural, physical and social domains. Targeting the full data-cycle, the project focused on various activities:<br />

strategy drafting, data capture, information system development, acquisition of technologies, territorial<br />

zone scanning and ultimately, the development of a Shared Environmental Information System<br />

aimed at disseminating all the data for free to the general public.<br />

By Saviour Formosa, Elaine Sciberras and Janice Formosa Pace<br />

Figure 1: Aerial image depicting the Fort Chambray in Gozo<br />

An initiative started in 2006 and<br />

awarded in 2010, focused on the<br />

spatial data enhancement of information<br />

in the physical, social and natural environment<br />

domains, leading to an integrated<br />

monitoring system. The mechanism em ploy -<br />

ed to finance such a major undertaking<br />

formed part of a €4.6 million project, entitled<br />

Developing National Environmental<br />

Monitoring Infrastructure and Capacity. This<br />

project was co-financed by the European<br />

Regional Development Fund, which has provided<br />

85% of the project’s funding and the<br />

Government of Malta, which financed the<br />

rest under Operational Programme 1 -<br />

Cohesion Policy 2007-2013 - Investing in<br />

Competitiveness for a Better Quality of Life.<br />

The authors are implementing the project<br />

through the Malta Environment and Planning<br />

Authority in collaboration with the Malta<br />

Resources Authority (MRA), the Department<br />

of Environmental Health, the National<br />

Statistics Office (NSO) and the University of<br />

Malta.<br />

The project was required to span the divide<br />

between the theme-specific fieldworkers in<br />

the natural-physical-social environments, the<br />

relative information specialists, the thematic<br />

analysts and the policy makers. The problem<br />

to date has been garnered by the fear<br />

of information by social scientists on one<br />

hand and the society-phobic developments<br />

of the techno-centric experts on the other.<br />

The Maltese endeavor aims to create a<br />

socio-technic environment that sits in the middle<br />

and delivers high end technological<br />

functionality for the technology knowledgeable,<br />

whilst providing easily workable information<br />

systems for the phobics.<br />

Concentrating on creating a strategy and a<br />

series of methodological requirements for<br />

the environmental domains, the project<br />

sought to create baseline datasets in the spatial<br />

fields, through the ambitious launching<br />

of a high resolution 3D terrestrial data coverage<br />

for the Maltese Islands. This was<br />

undertaken through a combination of<br />

oblique aerial imagery (Figure 1) and Light<br />

Detection and Ranging (LIDAR) data (Figure<br />

2), as well as through a bathymetric survey<br />

18<br />

December <strong>2012</strong>


A r t i c l e<br />

Figure 3: The Blue area depicts the bathymetric sidescan zone, the<br />

brown depicts the bathymetric LIDAR zone and the green depicts the<br />

terrestrial LIDAR zone.<br />

of coastal waters within 1 nautical mile (nm)<br />

radius off the baseline coastline, which<br />

utilised a combination of bathymetric LIDAR<br />

surveys, acoustic scans and a physical grab<br />

sampling survey of the entire land area<br />

(316.16 km.sq) and the immediate marine<br />

area (361 km.sq) (Figure 3). The terrestrial<br />

and bathymetric scans were entrusted to<br />

Terraimaging and their subcontractors Aqua -<br />

BioTech Group.<br />

The main outputs to be disseminated to the<br />

public within an accessible interface comprise:<br />

• LIDAR Scan: Terrestrial (Topographic Light<br />

Detection and Ranging (LiDAR)) Digital<br />

Surface Model (DSM) and Digital Terrain<br />

Model (DTM) (316 km.sq)<br />

• Bathymetric LIDAR aerial survey - depths<br />

of 0 m to 15m within 1 nautical mile from<br />

the Maltese coastline (38 km.sq)<br />

• Bathymetric Scan: Acoustic (side scan<br />

sonar) Digital Surface Model and an<br />

acoustic information map of sea bed<br />

(361 km.sq)<br />

• High resolution oblique aerial imagery<br />

and derived orthophoto mosaic and tiled<br />

ima ge ry of the Maltese Islands (316<br />

km.sq)<br />

• Satellite imagery (GeoEye, RapidEye,<br />

Quickbird) (316 km.sq)<br />

In addition to the service deliveries, a number<br />

of supply technologies have been<br />

acquired and implemented. These include:<br />

• Remote GPS Cameras (Remote capture<br />

GPS receiver)<br />

• Integrated GI infrastructure (workstations,<br />

servers, san and GI raster/vector –based<br />

software)<br />

• 3D scanner and 3D printer<br />

• GIS Handhelds for field surveys<br />

• Global Navigation Satellite System Sta -<br />

tion<br />

There are many ancillary spin-offs envisaged<br />

from the activity, such as nautical charts,<br />

viewshed analysis maps and cross-thematic<br />

studies in the physical, social and environmental<br />

domains. Of special interest is the<br />

impact that the planning development has<br />

on the health and socio-psychological fields<br />

through shadow-analysis and other cross-thematic<br />

studies. Users will be able to generate<br />

digital terrain 3D models, which can be<br />

used for various applications planned for<br />

urban and transport planning, environmental<br />

impact assessments, infringement analysis,<br />

security review, green criminology, risk<br />

maps, climate change and its socio-economic<br />

impact, monitoring of and enforcement of<br />

land use activities and predictive analysis<br />

and migration, amongst others.<br />

All this will be possible through the implementation<br />

of an innovative product that<br />

adheres to international directives, in turn<br />

ensuring the free delivery of all project-related<br />

data to the general public. This drive<br />

effectively brings together the requirements<br />

Figure 2: Lidar image depicting the Maltese countryside<br />

as outlined by the Commission’s Com mu -<br />

nication COM (2008) 46 Final “Towards a<br />

Shared Environmental Information System”,<br />

the INSPIRE Directive (Directive 2007/2/EC)<br />

and the Aarhus Convention. The tool is<br />

being developed by Epsilon International<br />

through the creation of a viewing, analytical<br />

dissemination tool employing a web portal,<br />

which is compliant to the EU’s Shared<br />

Environmental Information System (SEIS). It<br />

will lead the way for voluntary geographic<br />

input, for which a system is to be launched<br />

in the coming months.<br />

Saviour Formosa is a Senior Lecturer at the University of Malta. His<br />

main area of research is in spatio-temporal analysis of crime and its<br />

social and physical relationships using spatial information systems.<br />

Elaine Sciberras is a senior projects officer within the Information<br />

Resources Unit at the Malta Environment and Planning Authority. She<br />

is currently part of the team managing an ERDF project, which is<br />

developing national environmental monitoring infrastructure and<br />

capacity. Janice Formosa Pace is a visiting lecturer at the University of<br />

Malta. Her main area of research is in the transmission of crime<br />

across the generations with emphasis on the period between 1950<br />

and 2010, in the Maltese Islands.<br />

Latest News Visit www.geoinformatics.com December <strong>2012</strong><br />

19


A r t i c l e<br />

Aerial Photography<br />

Capturing Cape Town<br />

Getmapping, a company that produces its own vertical aerial photography, oblique photography and<br />

height data, captured and delivered over 2500 km 2 of high resolution (6.25cm) imagery covering the<br />

entire City of Cape Town Metropolitan area.<br />

By the editors<br />

existing budget, and deliver the data in less<br />

time than it would have previously taken to<br />

produce standard (12.5cm) imagery.<br />

By using the A3, Geosense was able to overcome<br />

the challenges posed by the area’s terrain<br />

and airspace restrictions by flying at<br />

approximately twice the height of a conventional<br />

survey, with a footprint twice as large.<br />

By flying higher, many ATC restrictions were<br />

overcome, and by effectively flying half as<br />

many survey lines, Geosense was able to<br />

complete the project in a fraction of the time<br />

it would otherwise have taken. The captured<br />

imagery comprised 690,886 frames of<br />

imagery captured across 13,025 sweeps.<br />

Founded in 1999, Getmapping pioneered<br />

the concept of nationwide coverage<br />

of aerial photography. Today<br />

Getmapping produces its own vertical aerial<br />

photography, oblique photography and<br />

height data.<br />

Getmapping services a wide variety of business<br />

sectors including central and local government,<br />

utilities, the emergency services,<br />

media and publishing, property and construction,<br />

transport, communications and the<br />

environment across Great Britain and internationally.<br />

The Challenge<br />

Getmapping, through its African subsidiary<br />

Geosense, was commissioned by the City of<br />

Cape Town (CoCT) to provide the most<br />

detailed imagery of their municipality ever<br />

captured. The challenge was to capture, process<br />

and deliver over 2500 km2 of high resolution<br />

(6.25cm) imagery covering the<br />

entire City of Cape Town Metropolitan area.<br />

CoCT is one of the most pro-active Local<br />

Authority users of imagery in the world, and<br />

Green Point Stadium in Cape Town<br />

employs imagery across many of its service<br />

divisions including planning, enforcement<br />

and transport. CoCT is growing rapidly and<br />

undergoing significant change every year.<br />

As a result, CoCT requires regular surveys<br />

of its entire region to support a wide range<br />

of core services.<br />

The CoCT region covers the City of Cape<br />

Town, including outlying suburbs and the<br />

Cape Peninsula. The region also includes<br />

the world famous Table Mountain Park. As<br />

a result, undertaking aerial survey of the<br />

area faces a number of challenges created<br />

by significant variations in the terrain, as<br />

well as having to work around the busy<br />

Cape Town International Airport.<br />

The Solution<br />

Geosense deployed the VisionMap A3<br />

Digital Mapping System to meet CoCT’s<br />

challenge. Prior to this project, CoCT has<br />

mostly commissioned 12.5cm imagery for<br />

their entire region. However, by deploying<br />

the A3 system, Geosense was able to provide<br />

CoCT with full coverage of their region<br />

at high resolution, without stretching their<br />

In total, the survey took approximately 45<br />

hours including transits and occasional holding<br />

patterns from ATC. This compared to a<br />

similar number of hours for flying 12.5cm<br />

imagery of the region the previous year<br />

using a frame based camera system.<br />

Processing high resolution imagery for a<br />

project of this size would normally be very<br />

labour intensive and time consuming, to<br />

undertake aerial triangulation, mosaicing<br />

and finalising. However, the A3 Lightspeed<br />

Processing System automated many of these<br />

tasks and reduced the amount of manual<br />

effort by approximately 75%, delivering<br />

huge time and cost savings. Geosense was<br />

able to process all of the imagery rapidly<br />

and deliver the finished accurate and seamless<br />

imagery to the client within three months<br />

of starting the capture. The final delivery,<br />

consisting of a seamless, ortho-rectified<br />

mosaic of the entire CoCT area, is now in<br />

CoCT’s central GIS system and used<br />

throughout the organisation.<br />

For more information, have a look at: www.visionmap.com<br />

20<br />

December <strong>2012</strong>


A r t i c l e<br />

Data on the move<br />

Safe Software<br />

Data movers at Safe Software have been busy keeping up with the latest technology and data trends.<br />

Safe Software’s President and Co-founder Don Murray talks about recent releases and how the company<br />

is wrapping their heads around real-time data feeds, LiDAR, non-relational data tables and cloud<br />

computing.<br />

By Eric van Rees<br />

Interoperability extension<br />

Safe Software is known for its flagship<br />

product FME (Feature Manipulation<br />

Engine) for data transformation. Since<br />

the release of FME <strong>2012</strong>, the company<br />

has been keeping up with new<br />

technology and data trends. With a<br />

new release of Esri’s ArcGIS, version<br />

10.1, Safe Software has something to<br />

share regarding that; for starters a<br />

new version of the ArcGIS Data interoperability<br />

extension. This is an<br />

optional extension to ArcGIS that provides<br />

support for over 150 GIS, CAD<br />

and database formats. This update<br />

provides two years worth of improvements<br />

to the, which means a new<br />

focus on LiDAR data. Murray: “the<br />

ArcGIS Data interoperability extension<br />

makes it really easy for people to get<br />

LiDAR data into ArcGIS 10.1. LiDAR<br />

data is everywhere – railways are<br />

starting to put LiDAR scanners on the<br />

front, so they can measure track<br />

anomalies to better determine where<br />

tracks need maintenance, for example.<br />

Obviously, the data volumes are<br />

through the roof.”<br />

ArcGIS for Local<br />

Government<br />

The other big issue is local government. Esri<br />

has the ArcGIS for Local Government systems,<br />

which is essentially a data model.<br />

Murray: “once local governments get data<br />

into the data model, they’re able to leverage<br />

a lot of apps and maps at Esri. It’s easy<br />

to use our technology and, whether you’re<br />

coming from ArcGIS or from other systems,<br />

to get data into that data model, so that you<br />

can leverage all those apps which just come<br />

out of the box with ArcGIS for Local<br />

Government.”<br />

On the same ‘data moving theme’, there’s<br />

Parcel Fabric, which is part of the tools for<br />

Esri’s ArcMap. Murray: “it enables users to<br />

Don Murray<br />

manage their cadaster, for example, property<br />

boundaries, but it has its own data<br />

model. So in order to use that tool you have<br />

to put data into that data model. Many cities<br />

still use CAD for that, and then start moving<br />

that into ArcGIS. The easiest way to get that<br />

data in is to use cadastral XML. We’re showing<br />

people how easy it is with FME to take<br />

your cadastral fabric into the cadastral XML<br />

model, so you can then simply load that XML<br />

directly into ArcGIS.”<br />

FME Server in the cloud<br />

FME Server, Safe Software’s server product<br />

for handling large data volumes, can be<br />

deployed in the cloud now, says Murray.<br />

But, at the present moment, it’s not ‘software<br />

as a service’. Murray: “we have<br />

a number of clients who have deployed<br />

FME Server in the cloud: all of our FME<br />

Server sites that you hit are running on<br />

Amazon AWS. At this point we don’t<br />

have a ‘pay for use service’ model, but<br />

this will come out in the near future.”<br />

Putting up your own server is not a<br />

small task, says Murray, and that’s why<br />

clients approach Safe Software for<br />

doing this: “clients have specific tasks<br />

they want to perform, but they don’t<br />

want to go through the expense and<br />

effort of buying the hardware, bandwidth,<br />

security, and someone to manage<br />

it. From an efficiency and cost<br />

standpoint, there’s a good argument.”<br />

The big thing though, is data and<br />

where it resides. Murray:<br />

“Organizations are very hesitant to put<br />

their data in the cloud, because they<br />

need to know where the data actually<br />

resides. So if you’re in Europe for<br />

example, you probably don’t want your<br />

data stored in the US, because different<br />

countries have different laws on<br />

who has access to data.” Also, if the<br />

data is closer to you, you’re going to<br />

get a better response. The path is shorter<br />

and, therefore, there’s less chance of finding<br />

a bottleneck on the internet.<br />

Real-time data<br />

From the server side, Murray is seeing a lot<br />

of movement into real-time data. Murray:<br />

“there are sensors everywhere with real-time<br />

data-feeds – people want to leverage these<br />

live data-streams, combine it with their own<br />

data and make better faster decisions than<br />

they can with the traditional static data<br />

approach. On the FME Server front, we’re<br />

spending a lot of effort on that.”<br />

On FME Desktop, ‘formats’ define which systems<br />

we can work with. The more formats the<br />

more systems we can work with. Formats<br />

22<br />

December <strong>2012</strong>


A r t i c l e<br />

Location of buses, ships, and planes in the San Francisco area displayed on Google Maps using FME Server to process the real-time data feeds.<br />

cover everything from database, to files, to<br />

web services such as WFS. On the server,<br />

‘protocols” define the systems that our server<br />

can connect. The goal here is to add support<br />

for as many protocols as possible. Some popular<br />

ones that we support are HTTP (REST),<br />

FTP, email, UDP, and JMS. “The goal is to<br />

have as many protocols as possible so it is<br />

easy for people to get data into FME Server<br />

so it can do its thing”, says Murray.<br />

Big Data<br />

As for the Big Data move, the company has<br />

started looking at some of these things, for<br />

example CouchDB, an open source data -<br />

base system. Murray: “we’re experimenting<br />

with it but haven’t come up with a great user<br />

scenario at this point, but we want to make<br />

sure that they can get data in and out easily.<br />

And then we’re hoping to find somebody<br />

who knows what they want to do with it and<br />

grow the functionality to support that scenario.<br />

“<br />

It makes sense that datasets are, in general,<br />

exploding, says Murray: “just think about<br />

the size of a LiDAR dataset – the files are<br />

measured in tens of gigabytes. At this point<br />

we haven’t had a focus on big non-relational<br />

data tables, but it’s coming – the same<br />

goes for full-motion video.”<br />

A point cloud was colorized by using FME to overlay an orthophoto on a point cloud with no color information.<br />

Internet: www.safe.com<br />

You can read more of Don’s thoughts at http://blog.safe.com.<br />

Latest News Visit www.geoinformatics.com December <strong>2012</strong><br />

23


I n t e r v i e w<br />

On Acquiring Geosemble, Product Integration<br />

TerraGo<br />

In July <strong>2012</strong>, US-based TerraGo Technologies announced the acquisition of Geosemble Technologies.<br />

Rick Cobb is President and Chief Executive Officer of TerraGo. Here, he talks about the complementary<br />

product portfolios of both companies and what the future has in store.<br />

By Eric van Rees<br />

Rick Cobb<br />

TerraGo is a software company that provides<br />

a platform for the development of<br />

geospatial intelligence applications and<br />

reports. Based in Atlanta, Georgia, TerraGo<br />

has more than 1,000 paying software customers<br />

around the world. The company has<br />

clients in sectors such as defense and intelligence,<br />

homeland security, crisis planning and<br />

response, public safety, natural resources and<br />

energy. In July of this year, TerraGo an -<br />

nounced the acquisition of the technology,<br />

assets, and staff of Geosemble, a company<br />

from Manhattan Beach, California. Why did<br />

the TerraGo make this acquisition and what<br />

does this mean for both product portfolios and<br />

customer base Rick Cobb, President and<br />

Chief Executive Officer of TerraGo Tech no -<br />

logies explains all.<br />

of course there are a couple of common customers,<br />

as well, who use both of our solutions.”<br />

Both companies also share the same investor,<br />

In-Q-Tel, a non-profit venture capital firm “created<br />

to bridge the gap between the technology<br />

needs of the U.S. Intelligence Community<br />

(IC) and new advances in commercial technology.”<br />

Finally, Cobb discussed in earnest how both<br />

firms can be brought together to develop synergistic<br />

high-value applications, based on<br />

each other’s strengths. Cobb: “our expertise<br />

is heavy in bringing all kinds of different<br />

geospatial data together, putting it into context<br />

and delivering into the hands of the user<br />

who doesn’t have expertise in geospatial technology.<br />

Geosemble’s expertise is in the discovery<br />

and analysis of unstructured content<br />

from social media and more generally documents<br />

from the Web and elsewhere, making<br />

associations between that content and points<br />

of interest, then providing tools to visualize<br />

and find only that content which is relevant to<br />

the user’s particular interest or application. We<br />

bring the complementary technologies together<br />

to provide solutions for customers who want<br />

to discover geospatial information, package<br />

it and provide it to the edge in collaborative<br />

applications.”<br />

GeoXray and MapStrata<br />

TerraGo has a suite of software that supports<br />

desktop, server and mobile applications. The<br />

Geosemble technology comprises server-based<br />

technology, says Cobb: “Geosemble is best<br />

known for a product called GeoXray, a very<br />

powerful solution that allows people to plug-in<br />

to all kinds of unstructured data sources, like<br />

social media, news blogs and then mine all<br />

that data based on a topic, place and time.<br />

When a user passes unstructured data across<br />

a location or point of interest area in<br />

Geosemble, only the relevant material sticks.”<br />

GeoXray also lets people visualize on Google<br />

Maps and Google Earth, as well as maps provided<br />

by Web services, such as those provided<br />

by Esri’s ArcGIS Online. Also, GeoXray<br />

implementations enable visualization on enterprise<br />

geospatial assets, and that’s why they<br />

offer integration - with Esri software products.<br />

Geosemble and TerraGo<br />

When comparing the two companies, Cobb<br />

mentions the synergy across both, as well as a<br />

number of other common features: “both<br />

TerraGo and Geosemble support the same<br />

industries, and we have a similar mindset<br />

because we’re young and emerging companies.<br />

Through the acquisition, we got the<br />

opportunity to bring an exciting new set of<br />

capabilities to many more customers and then<br />

GeoXray overview<br />

24<br />

December <strong>2012</strong>


I n t e r v i e w<br />

GeoXray screenshot<br />

Cobb: “GeoXray is going to become a core<br />

capability. We have been developing serverbased<br />

and service-based technology to let<br />

people access and combine GIS data and<br />

other structured data and unstructured data<br />

and documents for some time now. In addition,<br />

we’ve been asked to tap into other<br />

sources, such as SharePoint, so we’re working<br />

on that. The goal is to be able to bring<br />

almost any data together on the map. The<br />

GeoXray capabilities greatly enhance our<br />

ability to deliver a single, coherent solution.”<br />

What a lot of people don’t know is that<br />

TerraGo has been developing server technology<br />

for a number of uses, such as homeland<br />

security, GeoEye and others. Cobb: “Geo -<br />

semble also has some interesting technology<br />

that is not as quite as productized as GeoXray,<br />

called MapStrata, which does conflation of<br />

all kinds of different data with imagery. So,<br />

for instance, users can take a satellite or aerial<br />

image and take a vector map without any<br />

geospatial registration and register the two<br />

with some really clever pattern recognition<br />

algorithms.”<br />

Integration with ArcGIS Server<br />

From an overall architecture functionality perspective,<br />

the acquisition is a good fit for<br />

TerraGo, says Cobb. How will the different<br />

products be developed further and integrated<br />

“The first thing we’re doing is integrating<br />

GeoXray with ArcGIS for Server. There are a<br />

growing number of sources of data for visualization<br />

and analysis out there, but at the end<br />

of the day, many of our customers want to use<br />

their own assets, and much of that is managed<br />

by Esri’s ArcGIS, so it’s a natural starting point.”<br />

This integration enables the following workflow:<br />

“if you do a search and identify a bunch<br />

of interesting content and now you want to<br />

create a mobile app, you push a button in an<br />

ArcGIS for Server implementation and push it<br />

out to TerraGo Mobile. Somebody in the field<br />

can now get maps, structured and unstructured<br />

data and content, add their own fieldcollected<br />

data and content, share it with everybody<br />

and send it back into the enterprise. “<br />

The ArcGIS for Server integration also enables<br />

access to GeoPDF maps, imagery and applications.<br />

The term GeoPDF sometimes causes<br />

misunderstandings. What is exactly meant by<br />

GeoPDF Cobb explains that GeoPDF itself is<br />

a trademark used to brand a suite of technologies<br />

developed by TerraGo: “a GeoPDF<br />

application has content, it has functionality, it<br />

has digital rights, it’s interactive, and it works<br />

in the TerraGo workflow. With TerraGo software,<br />

I can make my own content, import<br />

shapefiles, export KML and more, to personalize<br />

my GeoPDF maps. To us, a GeoPDF is<br />

a core set of technologies that represents<br />

mobility and interactivity and collaboration.<br />

What makes GeoPDF GeoPDF is not the georeferencing<br />

technique, which we opened and<br />

released through OGC and elsewhere, but<br />

rather the creation, configuration, and collaboration<br />

capabilities that are made possible by<br />

our software.”<br />

Roadmap of TerraGo<br />

The acquisition has its consequences for both<br />

companies’ release schedules. TerraGo issued<br />

a major release last summer: “In July <strong>2012</strong>,<br />

we released Version 6 (V6), which spans the<br />

core software products - Composer, Publisher,<br />

the SDK and TerraGo Toolbar. These were<br />

upgraded and more deeply integrated. We<br />

added some neat technology like geoforms<br />

for doing structured field data collection and<br />

collaboration infrastructure to share near realtime<br />

information in the field.”<br />

The company also is planning a major mobile<br />

release. Cobb: “we’ve completely written<br />

TerraGo Mobile for Android from scratch,<br />

including our own powerful rendering engine<br />

because there’s really not much out there.<br />

Over the past year and a half we’ve built an<br />

entire front to back solution in the core<br />

TerraGo technology products. Most exciting<br />

of these is TerraGo Mobile for Android which<br />

on schedule for a November release.”<br />

As for Geosemble technologies, there are<br />

already plans for how to work with them, says<br />

Cobb: “they shipped the brand-new release<br />

GeoXray Version 3 last April that includes significant<br />

new functionalities and features. In<br />

particular, we’re working on scalability and<br />

usability, a few things that will solidify the current<br />

offering and then we’ll start the initial integration<br />

work.” This integration is not so much<br />

between the product lines initially, but into the<br />

workflow. Cobb: “The good news is we didn’t<br />

have to rip anything apart to rebuild it, so<br />

these are standalone solutions we get to integrate<br />

at more of a services level, which is a<br />

very powerful way to do it.”<br />

GeoXray screenshot<br />

Internet: www.terragotech.com<br />

Latest News Visit www.geoinformatics.com December <strong>2012</strong><br />

25


C o l u m n<br />

Smart Cities and Cooperation<br />

Futuristic scenarios will become reality as integrated standards platforms<br />

enable cities’ and citizens’ information systems to integrate information from<br />

GIS, BIM and civil engineering documents and services.<br />

Smart City advancement depends on a platform<br />

of communication infrastructure that<br />

enables seamless interoperation of diverse<br />

systems for representing the urban world, including<br />

systems for design – CAD, BIM and Civil Engi -<br />

neering software – and systems for observation and<br />

management – sensors, imaging and geospatial<br />

processing. These systems were created by different<br />

professional communities to solve different kinds<br />

of problems. The communities have different cultures,<br />

vocabularies and worldviews, so they tend<br />

to deal with their in-community interoperability<br />

needs in different ways.<br />

Despite these differences, progress toward interoperation<br />

moves forward, because the Smart City<br />

vision and the BIM vision become increasing compelling<br />

for both governments and businesses, and<br />

because at the same time cooperation in the standards<br />

organisation ecosystem is advancing.<br />

Some of the key players in the location standards<br />

ecosystem are the Open Geospatial Consortium<br />

(OGC), ISO/TC 211 (Geographic informa -<br />

tion/Geomatics), ISO/TC 59/SC 13 (Organi -<br />

zation of information about construction works) and<br />

Building Smart International (bSI). In October, at<br />

the Smart Geospatial Expo <strong>2012</strong> conference in<br />

Seoul, Korea, the OGC organized an “Inter oper -<br />

ability Day” along with the ISO/TC 211 ad hoc<br />

group on GIS-BIM, ISO/TC 59/SC 13 and the<br />

Korea Ministry of Land, Transport, and Maritime<br />

Affairs. This Joint Workshop was titled “The<br />

Challenge of GIS-BIM Standardization for<br />

Ubiquitous Public Access”. Representatives of the<br />

organizations made presentations and participated<br />

in discussions designed to help each organization<br />

understand the others’ problem sets, cultures,<br />

vocabularies and worldviews.<br />

Also in attendance were representatives from companies<br />

such as Autodesk, Bentley, Leica and Trimble<br />

who have much to gain from standards that will<br />

expand the market for products like theirs.<br />

Most of these companies have representatives who<br />

participate in the standards work of two or more<br />

of the four organizations. While written agreements<br />

between the organizations set the stage for cooperation,<br />

ongoing collaboration in technical meetings<br />

allows standards organizations to dig into the<br />

details, aligning their respective standards work<br />

programs and providing a workable set of standards<br />

that hide the differences among the systems.<br />

The OGC has liaised with ISO TC/211 for sixteen<br />

years (some OGC standards are now also ISO standards),<br />

and the OGC also has a memorandum of<br />

understanding with bSI. Several years ago, the<br />

OGC and bSI’s American member organization,<br />

the buildingSMART alliance (bSa), worked together<br />

in the joint bSa-OGC Architecture/Engineering<br />

/Construction/Owner/Operator Testbed (AECOO-<br />

1). The AECOO-1 Testbed was an exploratory step<br />

towards achieving service-based interoperability in<br />

the AECOO world. Today bSI is working with<br />

ISO/TC 59/SC 13 on matters related to the bSI’s<br />

Industry Foundation Class (IFC) specifications.<br />

Within the OGC, the 3D Information Management<br />

Domain Working Group (3DIM DWG) has long<br />

provided a forum to advance action to address<br />

standards related to CAD/BIM/geospatial integration<br />

as well as 3D information models.<br />

The OGC City Geography Markup Language<br />

(CityGML) Encoding Standard was built on top of<br />

the OGC Geography Markup Language (GML)<br />

Encoding Standard, and now CityGML is becoming<br />

widely used for the storage and exchange of<br />

virtual 3D city models.<br />

Visualization is an important factor in communication<br />

among the inhabitants of Smart Cities, and<br />

therefore the OGC, working closely with the<br />

Web3D Consortium, recently completed the 3D<br />

Portrayal Interoperability Experiment (3DPIE) to test<br />

and demonstrate different approaches for servicebased<br />

3D visualization using two related candidate<br />

OGC standards for 3D portrayal: the OGC Web<br />

3D Service (W3DS) and Web View Service (WVS)<br />

Interface standards. CityGML, and perhaps W3DS<br />

and WVS, will play an important role in Smart<br />

Cities, but they are not the whole solution.<br />

It is within OGC’s mission to enable interoperability<br />

between existing established workflows, to connect<br />

the Civil, Geospatial and Building worlds and<br />

to incorporate emerging technologies like Aug -<br />

mented Reality and Sensor Webs for the Internet of<br />

Things.<br />

Raj Singh,<br />

Director of Interoperability Programs<br />

Open Geospatial Consortium (OGC).<br />

C O L U M N<br />

Latest News Visit www.geoinformatics.com December <strong>2012</strong><br />

27


A r t i c l e<br />

A Specification Synthesis<br />

Terrestrial Laser Scanning<br />

In recent years, the use of terrestrial laser scanners (TLS) has spread rapidly throughout the world,<br />

undoubtedly due to their survey speed and automation, but probably also for their novelty value. The<br />

technology has certainly influenced the improvement of previous well-known techniques (for instance,<br />

close-range photogrammetry), with the development of issues such as dense point-cloud generation,<br />

process automation and large technique synergy. But, what specifications should currently be under<br />

consideration for terrestrial scanning works With these points in mind, this article analyses the basic<br />

themes connected with this technology and presents them as a specification synthesis, with examples.<br />

By Luigi Colombo and Barbara Marana<br />

Figure 1: The scanning step specifications<br />

Scanning and imaging<br />

Laser technology is the metrological basis of terrestrial measurement<br />

systems for object description. They are transportable and reliable<br />

devices, which record panoramic point clouds, with sophisticated<br />

servo systems for movement control.<br />

The point relative precision is usually higher than 1/10,000: it matches<br />

an absolute precision < 10 mm inside a range up to 200 m.<br />

The object scanning resolution (namely sampling)<br />

is achieved through a combination of:<br />

device-object distance, azimuthal and zenithal<br />

laser beam slant and object surface morphology.<br />

The point positioning precision (reflectorless<br />

or with optical targets) is a combination<br />

of: distance, beam divergence (the spot footprint),<br />

object morphology, surfaces material<br />

reflectivity (light, dark, mat, translucent, etc.)<br />

and environment.<br />

The scanning survey technique allows interactive<br />

procedures without accuracy check<br />

(redundancy is not assured) for the acquired<br />

points, unless measurements are taken from<br />

different locations. The surveyed surface is<br />

reconstructed in an independent way and then<br />

proper statistic comparisons are calculated.<br />

Figure 2: Sampling grid and laser footprints<br />

Figure 3: Scanners: a) phase-difference laser device with a superimposed photo-camera, b) and c) laser<br />

scanner with the support for an external photo-camera, d) time of flight scanner with photo-camera<br />

The new terrestrial device generation, based on phase difference<br />

and width modulated waves, are highly versatile solutions to survey<br />

built objects in medium range (100-200 m), allowing panoramic<br />

scanning of good precision. The acquisition<br />

rate is very high (up to 1,000,000 points per<br />

second) and so it is possible to also provide<br />

pseudo-dynamic applications.<br />

The scanning field of view is nearly spherical<br />

(360° horizontal and 305-320° vertical), the<br />

points precision is accurate to a few millimetres<br />

and a direct measurement can be realized<br />

on natural surfaces, even dark ones, and<br />

in reduced energy return conditions (at least<br />

5 % of the emitted one).<br />

By comparison, time of flight scanners allow<br />

only sub-panoramic acquisitions (about 360°<br />

x (60°-100°)), have medium speed, lower precision,<br />

but quite a high range (up to some<br />

thousands of meters); for this reason, they are<br />

also suitable for land measurement.<br />

28<br />

December <strong>2012</strong>


A r t i c l e<br />

Specifications<br />

Figure 4: Texturing: a) low resolution point cloud, b) good resolution point cloud, c) mesh with a<br />

re-projected image<br />

The acquisition time for a panoramic scan takes only a matter of<br />

minutes, despite very dense sampling. The final 3D point-model can<br />

be mapped with materic reflectance values or photo textured with<br />

colour images, so as to provide a realistic depiction of the surveyed<br />

object.<br />

Specifications for acquisition<br />

It is interesting to note that the following scanning specifications refer<br />

to (and partially complete) some executive proposals suggested in<br />

2006 by the English Heritage (www.heritage3d.org).<br />

We know that the sampling step is highly influenced by the object<br />

morphology and dimensions, by the required level of detail and,<br />

obviously, by the expected precision, which limit the choice of the<br />

most suitable surveying device.<br />

A survey project always starts from definition of Level of Detail (LoD)<br />

and required precision.<br />

It is possible to proceed according to the following steps.<br />

1) The dimension dr of the smallest object-element, to be recognized<br />

in the reconstructed model, is assigned together with a level of identification<br />

probability p%; then, the corresponding linear sampling<br />

step s (to be kept constant horizontally and vertically) can be calculated.<br />

From the English Heritage relationship:<br />

identification probability = p% = (1 - s/dr) x 100;<br />

set N = 1/ (1- p% / 100), it follows dr/s = N.<br />

Given dr and p%, the value s of the useful sampling step is derived.<br />

Figure 5: Image draping: the original photos (top) and the stitched panoramic image (bottom)<br />

Figure 1 shows the relationship of the ratio dr/s with the probability<br />

level.<br />

2) The low noise of the points acquired over the scan demands the<br />

fulfilment of the conditions s ≥b/2 or , preferably, s ≥ b (see fig. 2),<br />

between the grid step s and the laser beam footprint b.<br />

In fact, it is known that the laser beam footprint b follows the relationship<br />

b = b 0 + dα, with b 0 = the sensor spot at emission, d the<br />

working range and α the beam angular divergence.<br />

3) Finally, the laser precision σ should satisfy the numerical relation<br />

σ ≤ s.<br />

Anyway, the real scanning step performed over the object depends<br />

on the geometric conditions (normality or not) of the beam impact<br />

and, generally, on the surface morphology.<br />

To avoid loss of information or its decay, it is advisable to discard<br />

cloud areas acquired with too many slanting points of view (normal<br />

deviation > 45°, both horizontally and vertically).<br />

According to survey occlusions, a scan is assumed to be globally<br />

acceptable with data voids (holes) smaller than 5% of the whole surface;<br />

data voids are areas without points, whose dimension is at<br />

least 3 times greater than the sampling step s.<br />

It is also possible to scan at different LoD, while decreasing both the<br />

area of interest and the sampling step.<br />

Some laser scanners are provided with auxiliary devices, such as a<br />

GNSS positioning sensor, an inclinometer (to calculate the verticality<br />

of the azimuthal rotation axis) and a compass for angular bear-<br />

Latest News Visit www.geoinformatics.com December <strong>2012</strong><br />

29


A r t i c l e<br />

The point model can then be geo-referenced thanks to control points,<br />

with a surveying measurement, inside the selected reference system;<br />

the result is acceptable only if the residuals for each coordinate are<br />

less than 2s (with a statistical confidence of 95%).<br />

Figure 6: Point models of exteriors, with reflectance values, and<br />

interiors, with photo-texturing<br />

ing: all this can simplify the cloud registration and final geo-referencing.<br />

Operating steps<br />

The scanning procedure can be outlined as follows:<br />

1 Set the scanner to the dimension dr of the smallest object element,<br />

which is to be identified over the reconstructed model and then it<br />

should be possible to gain the sampling step s.<br />

For instance, if a probability level p equal to 67% is selected, then<br />

it follows N = 3 and then s = dr/ 3.<br />

Additionally, the precision for point positioning must satisfy the specification<br />

σ ≤ s;<br />

2 Define the range d of the surveyed area;<br />

3 Choose the most fitting laser device according to precision, range<br />

and speed;<br />

4 Calculate the laser beam footprint b, according to the angular<br />

divergence (b = b 0 + dα) in the interest area, which has to fulfil<br />

the specification s ≥ b/2.<br />

Point model construction<br />

All point clouds, usually panoramic and well overlapping, are connected,<br />

via software, to provide a 3D point model in a common reference<br />

system (for instance, the one from the most barycentric scan).<br />

The model can then be geo-referenced within an assigned coordinate<br />

system.<br />

The registration procedure between groups of clouds is initially<br />

achieved with the support of control points (at least 5 common points),<br />

which have been pre-targeted on the boundary and at the centre of<br />

the overlapping area (targets of fitting dimension and shape).<br />

Then, cloud registration is refined automatically, according to iterative<br />

alignment techniques (such as ICP algorithm, etc.) which use<br />

homologous features (points, lines and polygons) selected over cloud<br />

groups, so as to estimate the transformation parameters.<br />

In order to limit random errors, cloud connection is usually accomplished<br />

according to a procedure which initially links each of them<br />

to a pre-selected reference cloud and then minimizes the residuals<br />

with a further global approach.<br />

The result is only acceptable when the residuals Δx, Δy, Δz (among<br />

clouds) are less than:<br />

1 2s, for each coordinate, over the targeted control points (with a<br />

statistical confidence of 95%);<br />

2 s, for each coordinate, after accomplishing the matching procedure<br />

over features (with a statistical confidence of 95%).<br />

Photo-texturing<br />

Photo-texturing, which allows the construction of a realistic model<br />

(both for geometric and qualitative reading), is performed by draping<br />

images over the surveyed model, with the support of the internal<br />

and external orientation parameters.<br />

It is important that the digital photo camera is calibrated and integrated<br />

precisely with the scanning device. Doing this ensures the<br />

point clouds are already “coloured”. Additionally, as integrated cameras<br />

provide medium resolution images, it is often useful to acquire<br />

additional images of higher resolution, with external cameras.<br />

This means that photographs can be taken both on-line whilst scanning<br />

(through an integrated photo-camera) and off-line with an external<br />

camera. In addition, a series of shots are taken through wide<br />

angle or fish eye lenses, from the same scanning positions, so as to<br />

limit parallax errors (fig. 3). After this, each image is re-projected:<br />

• directly over the point cloud if it has a resolution at least homogeneous<br />

with that of the image: namely, if the sampling step s is<br />

nearly equal to the image pixel over the object (Ground Sampling<br />

Distance);<br />

• over a surface model (mesh model), reconstructed from point<br />

clouds, if the image has a resolution much higher than scans; the<br />

aim being to preserve its quality (fig. 4).<br />

In order to avoid having to manually re-project the images, one at a<br />

time over the model, which would require the selection of a high<br />

number of homologous points (to tie each image to the model); one<br />

could use stitching software to produce a few panoramic images<br />

from the acquired ones. (fig. 5).<br />

In fact, the homologous point search for co-registration between each<br />

image and the model is actually performed in a semi-automatic way,<br />

due to the continued existence of insufficient computing reliability.<br />

In any case, the results of the projecting process must be checked<br />

by analysing the residuals over tie points.<br />

The photos must be taken with a proper overlay, so as to minimize<br />

the effects from the line of sight slanting and occlusion effects<br />

(figure 6).<br />

In fact, both dynamic and static occlusions limit the completeness of<br />

the depiction. In order to overcome this problem, it is advisable to<br />

start surveying only after careful consideration to identify suitable<br />

shooting positions.<br />

Output<br />

Usually the following documentation, consistent with the customer<br />

software packages, is requested:<br />

1 a 3D digital coloured and measurable point model with phototextures;<br />

it will provide the free software for the model viewing<br />

and virtual visit, together with the tools for coordinates, distance<br />

and area evaluations;<br />

2 2D vector drawings, such as scaled orthographic views, horizontal<br />

and vertical profiles, plans, sections, DTMs, contour lines, elevations.<br />

Furthermore, in order to provide object elevations, it is possible to<br />

start from a raw draw, acquired in a semi-automatic way, through<br />

cut planes and angular-discontinuity-line extraction (according to the<br />

evaluation of the Normal-direction variability over the recorded<br />

points).<br />

This first output can be integrated later by tracing over orthographic<br />

views, direct survey and manual editing.<br />

30<br />

December <strong>2012</strong>


A r t i c l e<br />

Figure 7: The trade software<br />

Geometric and qualitative testing<br />

All the provided output has to be verified by sampling (≥10%), both<br />

for metric and qualitative features.<br />

In the beginning, a comparison is carried out between corresponding<br />

distances measured on the model and on the object; they must<br />

cross different clouds and should be easily identifiable, due to phototexturing.<br />

The residuals between distances (model minus object) must fulfil (with<br />

a statistical confidence of 95%) the condition Δd ≤ 2s .<br />

The accuracy of the cloud alignment can also be enhanced visually<br />

by colouring in, in complementary ways, the adjacent point clouds<br />

and verifying the resulting chromatic effect in the overlapping areas.<br />

It is important to check the continuity of the reconstructed entity<br />

boundaries and those of the extracted section profiles (which must<br />

be allowed despite occlusions and data voids), radiometric quality<br />

and colour uniformity.<br />

Examples<br />

a) First case<br />

Acquisition<br />

1 with a selected probability level (for instance 67%), the smallest<br />

detail dr is set to be identified over the reconstructed model: given<br />

dr = 20 mm →s = dr/3 = 6.7 mm (≅ 7 mm) and the expected<br />

precision σ ≤ 7 mm;<br />

2 the maximum scanning range is prefixed to: d = 30 m;<br />

3 the laser scanner choice is Z+F 5010; this instrument does not<br />

have a built-in calibrated camera for direct photo-texturing. The<br />

constructor precision for the selected range is σ ≅ 1 mm (therefore<br />

σ ≤ s);<br />

4 The footprint maximum value (data provided by the constructor):<br />

b = 12.5 mm is checked;<br />

5 the condition: sampling step s (mm) ≥ 12.5/2 mm is verified.<br />

Model construction<br />

6 residuals (with a statistical confidence of 95%) among clouds ∆x,<br />

∆y and ∆z ≤ 2s (14 mm);<br />

7 residuals (with a statistical confidence of 95%) among clouds,<br />

after entity matching, ≤ s (7 mm);<br />

8 geo-referencing residuals (with a statistical confidence of 95%) ≤<br />

2s (14 mm);<br />

9 testing residuals (with a statistical confidence of 95%) for distances<br />

≤ 2s (21 mm).<br />

b) Second case<br />

Acquisition<br />

10 with a selected probability level (for instance 80%), the smallest<br />

detail dr is set to be identified over the reconstructed model:<br />

given dr = 25 mm → s = dr/5 = 5 mm and the expected precision<br />

σ ≤ 5 mm;<br />

11 the maximum scanning range is prefixed to: d = 50 m;<br />

12 the laser scanner choice is: Leica HDS 6100 or Z+F 5006h;<br />

these instruments do not have a built-in calibrated camera for<br />

direct photo-texturing. The constructor precision for the selected<br />

range is σ ≅ 2 mm (therefore σ ≤ s);<br />

13 The footprint maximum value (data provided by the constructor):<br />

b = 14 mm is checked;<br />

14 the condition: sampling step s (mm) ≥ 14/2 mm must be accomplished.<br />

Point 5 is not true.<br />

So as to provide a sampling grid at the established level of probability,<br />

it is necessary to limit the scanning maximum range to 30 m<br />

(then b = 9.6 mm), or to get the requested reliability level to a lower<br />

value, such as 67%: then it follows s = 8.3 mm.<br />

Steps 6), 7), 8) and 9) are as above.<br />

Hardware and software<br />

All current laser scanners are usually of good quality, in spite of different<br />

operating features and costs. The provided hardware is certainly<br />

of a higher reliability level, as compared to the processing<br />

software currently available. This is still a sticking point for this emergent<br />

survey technique.<br />

In data processing, some steps are almost totally automated, such<br />

as the acquisition phase, while others must still be improved, such<br />

as for the model reconstruction and data co-registration. Other steps,<br />

such as elevation and extraction, will probably remain semi-automated.<br />

Furthermore, in order to provide the requested output and meet the<br />

different end-user data management capabilities, technicians often<br />

have to use different packages (scanning control software, general<br />

processing, specific software).<br />

A global overview of the present main trade packages is shown in<br />

fig. 7.<br />

Expectations<br />

Nowadays, expectations for technology improvement are aimed<br />

towards the growth of the degree of automation, reliability and<br />

speed of data processing, in order to provide a nearly expert system<br />

for applications.<br />

To clarify, it would be prudent to enhance the following working<br />

steps:<br />

• cloud registration;<br />

• spatial model texturing and image co-registration;<br />

• production of satisfying 2D output, such as elevations, plans, vertical<br />

sections, together with gridding and contour-line drawings.<br />

Luigi Colombo is professor of Geomatics and Barbara Marana is assistant professor at the University of<br />

Bergamo - Engineering Department - Dalmine (Italy).<br />

References:<br />

• Aguilera D., Gonzàlvez P., Lahoz J. (2009) - An automatic procedure for co-registration of terrestrial laser<br />

scanners and digital cameras - ISPRS Journal of Photogrammetry and Remote Sensing, 64 (3).<br />

• Colombo L., Marana B. (2011) - Surveying buildings. GeoInformatics - vol. 7.<br />

• Colombo L., Marana B. (2010) - Terrestrial laser scanning. GIM International - vol. 12.<br />

Latest News Visit www.geoinformatics.com December <strong>2012</strong><br />

31


E v e n t<br />

Public and Private Sector Discuss Current Trends in the Industry<br />

Intergeo Press Conference <strong>2012</strong><br />

Wednesday October 10 was the date for the yearly press conference at the Intergeo Conference and<br />

Trade Fair, organized by DVW e.V. - the German Society for Geodesy, Geoinformation and Land<br />

Management. Representatives from the public and private sector discussed a number of international<br />

trending topics in the industry.<br />

By Eric van Rees<br />

comes to standardizing quality of data, and<br />

therefore ‘the question of quality is a relative<br />

one’.<br />

All speakers during the International press conference at Intergeo <strong>2012</strong>, organized by DVW e.V. - the German Society for Geodesy, Geoinformation<br />

and Land Management (source: Hinte Messe)<br />

It’s a tradition that every Intergeo edition<br />

features a press conference with national<br />

and international speakers from the private<br />

and public sector. Speakers present this<br />

year were Prof. Ing. Karl F. Thone (President<br />

DVW e.V.), Steve Berglund (President of<br />

Trimble), Teo CheeHai (president of FIG),<br />

Jean-Yves Pirlot (President of CLGE), Dr.<br />

Andreas Scheuer (Parlimentary State<br />

Secretary at the Federal Ministry of<br />

Transport, Building and Urban Development)<br />

and Arnulf Christl (President OSGeo FOSS-<br />

GIS).<br />

Topics discussed covered many issues pertinent<br />

to the surveying profession, including<br />

the changing nature of the profession, now<br />

that new technology is enabling surveyors<br />

to do their work differently. Crowdsourcing<br />

is also raising questions within the profession:<br />

when do you need a surveyor in the<br />

field Surveying organizations such as FIG<br />

and CLGE, who represent their members,<br />

have requested more visibility in the political<br />

arena, not only to support their members,<br />

but to show the necessity for qualitative<br />

data. The topic of free available data is<br />

also proving to be a rather difficult one, as<br />

the private and public sectors are often at<br />

loggerheads with one another, as they have<br />

different interests.<br />

Geospatial data quality<br />

Spatial data quality is a topic that popped up<br />

a number of times during the one hour press<br />

conference. The quality of crowdsourced data,<br />

as opposed to authoritative data, was questioned.<br />

As there are already many industry<br />

standards, do we need more standards or<br />

would one single industry standard be better<br />

Steve Berglund summed it up best by saying<br />

that there may not be a universal standard that<br />

applies to all uses, but rather there may be<br />

various standards as defined by the user and<br />

within that context. Also, not all functions<br />

require the highest attainable accuracy “if you<br />

are using data to do a critical function in construction<br />

or infrastructure, the quality of the<br />

data needs to be perfect or as close as to perfection.<br />

For another purpose, using geospatial<br />

data, good enough is good enough.”<br />

What will be a challenge though, is defining<br />

the quality of huge amounts of data. Berglund<br />

stated that Trimble, as a technology company,<br />

works on building solutions relative to specific<br />

circumstances of an industry when it<br />

The surveying profession<br />

As expected, surveying representatives’ organizations,<br />

such as FIG and CLGE, discussed<br />

the changing nature of the surveying industry<br />

and pleaded for more organization with politicians<br />

on a regional level and collaboration<br />

on a local level.<br />

Jean-Yves Pirlot mentioned the Third CLGE<br />

Conference of the European surveyor, which<br />

was organized together with the Intergeo<br />

Conference and Trade Fair on October 11th,<br />

as an example where European surveyors<br />

shared national case studies and experiences.<br />

He explained that one of the organization’s<br />

tasks is to appear on the radar of policy makers,<br />

but that in the case of Brussels, this is very<br />

difficult. The good news is that Europe has recognized<br />

CLGE as an organization representing<br />

the profession as a whole, not only the private<br />

sector, but also in the public sector.<br />

Public and private sector views<br />

on geospatial data<br />

With organizations such as FIG and CLGE<br />

functioning as a sort of intermediate between<br />

the public and private sector, commercial companies<br />

are forced to develop strategies in the<br />

short term, whilst governments can make policies<br />

for years ahead. The two are closely<br />

linked, however, since it’s these indicators that<br />

create an environment where commercial<br />

companies have to operate. Says Bergland:<br />

“there need to be clear indicators in terms of<br />

what are the right behaviors, in other words<br />

clarity and certainty of governmental regulations<br />

– the more confused they are, the more<br />

difficult it is for companies as Trimble to produce<br />

practical solutions. The more clear and<br />

certain, the better.”<br />

As for the use of new technology, he stated<br />

that technology enables solutions, but they are<br />

32<br />

December <strong>2012</strong>


E v e n t<br />

not the same thing: “the cloud and the internet<br />

are enablers in some sense, the same way<br />

that infrastructure development of a hundred<br />

years ago – harbors and roads – were<br />

enablers. They are enabling technologies that<br />

lead us to solutions.”<br />

The remainder of the discussion was about<br />

free geospatial data. Should governments<br />

give away their authoritative data for free<br />

And who has to pay for creating this data<br />

Unfortunately, there are still no easy answers<br />

to this one. In the US, the assumption is that<br />

the bulk of geospatially referenced data available<br />

will not be coming from governments, but<br />

that there will be multi-sourcing of data from<br />

a number of different sources. Bergland mentioned<br />

a regulated environment that will be<br />

‘government-focused’ with the official certification<br />

associated with it, as well as a lot of<br />

other participants that will make their data<br />

available. But then, there’s the question of the<br />

quality of that data since there’s no quality<br />

guarantee. In short: more free data, but without<br />

the official certification.<br />

Internet: www.intergeo.de


A r t i c l e<br />

An Introduction<br />

Make Web Maps with MapBox<br />

New technologies have emerged that are making web mapping much simpler and more accessible to<br />

cartographers, GIS specialists, and those with less specialized skills alike. Mapbox is one such a tool.<br />

By Bonnie Bogle<br />

A look at Washington, DC in MapBox Streets.<br />

Mapbox is a platform for creating<br />

beautiful interactive maps and<br />

sharing them on the web and<br />

mobile devices. It starts with a beautiful<br />

world street map as a base layer, which you<br />

can style and add location markers to<br />

through a web-based interface. Then you<br />

can add your own data using TileMill, a free<br />

desktop application for web cartography.<br />

Finally, share your maps on the web or<br />

mobile devices through a scalable and fast<br />

web service with embed codes and a robust<br />

API. MapBox is designed to be easy to use<br />

and flexible — new users can get started by<br />

changing the color and style of a map and<br />

adding points of interest to it, and more<br />

advanced cartographers can experiment<br />

with compositing, hexagonal binning, heat<br />

maps, and other artistic techniques.<br />

from a drop down. The<br />

colors and saturations of<br />

roads, areas, water, and<br />

land can all be changed<br />

using the color selector.<br />

Markers showing points<br />

of interest like museums,<br />

res taurants, or bus stops<br />

can be manually added<br />

to the map. The design<br />

of markers is flexible too,<br />

with the wide variety of<br />

icons and colors available<br />

through the Maki<br />

icon set.<br />

Using just these features,<br />

users can create custom styled maps that<br />

match the interface of their website or the<br />

look and feel they’re going for — with no<br />

technical skills and very little time required.<br />

Dive into advanced cartography<br />

Beautiful maps and the flexible tools to make<br />

them are at the heart of MapBox, and at the<br />

very core of this is TileMill. TileMill is an<br />

open source desktop application that simplifies<br />

designing beautiful web maps and<br />

adding custom, interactive data to them.<br />

While theming out MapBox Streets and<br />

adding data points is possible through the<br />

MapBox interface, TileMill is for advanced<br />

uses like adding large custom data sets to<br />

the map, adding interactivity and hover<br />

details, or experimenting with water color<br />

or pirate map designs.<br />

TileMill can pull data in from a range of popular<br />

file formats and databases including<br />

ESRI Shapefile, KML, GeoJSON, GeoTIFF,<br />

PostGIS, and SQLite. It uses the rendering<br />

engine Mapnik, a powerful, full-featured<br />

library that supports features like RGBA<br />

color, True Type fonts, rasters, patterns, and<br />

SVG transforms. Within TileMill itself, users<br />

can manipulate map design through an easy<br />

to use editor using CartoCSS, a language<br />

inspired by CSS the stylesheets used in web<br />

design, that gives full control and flexibility<br />

over map design. There are many built-in<br />

examples to help new users grab code and<br />

get familiar with CartoCSS, while power<br />

users can dive in and hack away.<br />

It’s also easy to add interactivity to maps<br />

through tooltips and clickable pop ups,<br />

revealing context, photos, graphs, and other<br />

details when desired. TileMill uses UTF-8<br />

grid technology to leverage interactivity for<br />

hundreds of thousands of data points while<br />

keeping maps fast.<br />

Share maps online<br />

Beautiful maps want to be seen. However,<br />

getting interactive, zoomable maps online<br />

is not an easy task. The final output of all<br />

maps made in MapBox is a set of tiles —<br />

Start with the baselayer<br />

MapBox Streets is a street-level map of the<br />

world and the primary baselayer used within<br />

the toolset. It has a clean, bright design<br />

that you may be familiar with if you’re a<br />

foursquare user, but users aren’t locked in<br />

to the design.<br />

There are twelve different preset custom<br />

styles for MapBox Streets - ranging from<br />

Terrain showing topological features like<br />

mountains and gorges, to Light providing an<br />

easy to read grayscale style, to Nightvision<br />

(yes, like the goggles) - that users can select<br />

Pirate map designed in TileMill.<br />

34<br />

December <strong>2012</strong>


A r t i c l e<br />

By mapping fires in the last twelve years, journalists were able to show that they generally occur in<br />

areas with the highest rates of deforestation.<br />

Map of areas in food crisis and on the ground operations to offer relief.<br />

256px by 256px squares that make up the<br />

basis of the zoomable, pannable web maps<br />

we’ve grown accustomed to seeing online.<br />

Through MapBox you can publish these<br />

maps in any website with embed codes,<br />

such as iframes, or you can use the MapBox<br />

API to take full control over the details of<br />

your maps and adjust image compression,<br />

layer compositing, interaction, legends, and<br />

more. MapBox also has a series of open<br />

source map site templates that serve as<br />

wrappers for full screen maps, turning an<br />

interactive map into a full-fledged microsite.<br />

Flexibility is a core tenant of MapBox. Any<br />

map designed in TileMill can be exported<br />

in the open MBTiles format, allowing users<br />

to export the millions of small tiles that make<br />

up a map in a single file. MBTiles integrates<br />

with many other map platforms, so it’s easy<br />

to take styled maps to use elsewhere or host<br />

them on private servers.<br />

Back to the storytelling<br />

The map-making space right now is flourishing.<br />

The tools are more accessible than ever,<br />

do more than ever, and are used by a wider<br />

swath of people - cartographers, GIS specialists,<br />

web developers, journalists, artists,<br />

data analysts, teachers, NGOs, gamers,<br />

and just about anyone who has a passion<br />

for maps and data visualization. And this is<br />

leading to some very interesting stories<br />

being told with maps. These two examples<br />

both were made with MapBox.<br />

Deforestation in the rainforest<br />

Journalists reporting on the Amazon<br />

Rainforest came together to launch<br />

InfoAmazonia.org, a collaborative project<br />

mapping news stories on the most important<br />

issues in the region — deforestation, extractive<br />

industries, and the overall destruction of<br />

land. The maps themselves are stunning, taking<br />

advantage of some of the advanced cartography<br />

features in TileMill like compositing<br />

and heat maps to convey the essence of<br />

the rainforest, the impact of deforestation,<br />

and the terror of forest fires.<br />

A food crisis and the world’s<br />

response<br />

Right now more than 18 million people in<br />

the Sahel region of West Africa are facing<br />

a food crisis. Drought, population movements,<br />

and conflict are compounding the<br />

problem. Recently nine international organizations<br />

came together to share information<br />

and collectively map the situation on the<br />

ground and international operations to provide<br />

food assistance, resulting in sahelresponse.org.<br />

Above all, the map practical. It<br />

clearly tells the story of why the food crisis<br />

exists, where it’s affecting, and operationally<br />

who is doing what on the ground to provide<br />

relief.<br />

Powered by open data and<br />

open source<br />

MapBox is made up of open data and open<br />

source code. MapBox Streets and all of<br />

Data harvested collectively shows deforestation in the rainforest and<br />

the major infrastructure locations playing a role in driving forest<br />

destruction.<br />

MapBox’s baselayer maps are populated<br />

with data from OpenStreetMap, the world’s<br />

free, editable community map. Open Street -<br />

Map first rose to prominence after the earthquake<br />

in Haiti, when volunteers quickly filled<br />

an almost blank map with streets, landmarks,<br />

and points of interest - turning it into<br />

far and away the most detailed map of Haiti<br />

in existence. It continues to see exponential<br />

growth in map content and people using it,<br />

especially with recent additions of<br />

foursquare, MapQuest, and Apple to its user<br />

base. Its data quality in much of the world<br />

shows that citizens can map their surroundings<br />

with greater detail and focus than any<br />

company has done.<br />

The MapBox team works with several open<br />

source projects to develop its toolset, notably<br />

JavaScript and Node.js for application<br />

development, Mapnik for rendering, the<br />

community map client project Modest Maps,<br />

and libraries like Wax, Easey, and markers.js.<br />

TileMill itself is an open source project,<br />

and can be freely downloaded and<br />

forked.<br />

By building tools in the open, we make sure<br />

our tools are tested and working for our<br />

users. As this is a rapidly evolving space,<br />

we develop agilely with lots of public feedback<br />

and collaboration.<br />

Get started designing maps with MapBox<br />

To get started designing maps with MapBox,<br />

sign up for a free account at mapbox.com.<br />

From there you can explore MapBox Streets,<br />

download TileMill, and start making your<br />

own custom maps. How-to guides are available,<br />

and there’s a support forum for any<br />

issues or questions that come up.<br />

Internet: http://mapbox.com<br />

Latest News Visit www.geoinformatics.com December <strong>2012</strong><br />

35


E v e n t<br />

A Review<br />

Intergeo Trade Fair <strong>2012</strong><br />

The world’s most important conference and trade show for geodesy, geo-information and land management<br />

attracted around 16,000 Geomatic- and GIS professionals to Hanover, Germany. A look at<br />

this year’s trends and topics.<br />

By Henk Key<br />

Figure 1: The open-air space<br />

Figure 2: Six rotors, a hexacopter<br />

The <strong>2012</strong> Intergeo conference and trade<br />

show took place at the Hanover Messe<br />

centre, which has a total of 26 halls and<br />

pavilions. Apart from the stunning architecture<br />

of the Exhibition Centre’s halls, it boasts a number<br />

of other features, including a Convention<br />

Centre with 35 function rooms, glassed-in<br />

areas between halls, grassy park-like areas<br />

and “chill-out” zones. The major exhibitions<br />

attract somewhere in the region of 400,000<br />

visitors, as compared to the figures of Intergeo:<br />

3 halls, 16,000 visitors, 28,000 square meters<br />

of exhibition space, 510 exhibitors including<br />

co-exhibitors, manufacturers, specialist dealers,<br />

consultants/service providers, public<br />

authorities, associations, institutions and publishers.<br />

After passing the entry-gates, visitors immediately<br />

look out over the open-air space, dozens<br />

of cars equipped with photogrammetric and<br />

LiDAR instruments which are ready to roll, a<br />

huge Topcon truck with a variety of instruments<br />

on display and buzzing octocopters or similar<br />

airborne flying objects.<br />

About 1400 visitors participated at the<br />

Intergeo conference and covered 40 subject<br />

areas. The first national INSPIRE (Infra struc ture<br />

for Spatial Information in Europe) conference,<br />

the CLGE (Council of European Geodetic<br />

Surveyors) and the Navigation conference<br />

were included in the Intergeo conference programme.<br />

Also, there were press conferences<br />

organized by commercial companies as well<br />

as a press conference from the Intergeo organization<br />

itself, where a newly formed Intergeo<br />

Advisory Board with Esri, Hexagon and<br />

Trimble as partners was announced.<br />

Trends and Topics<br />

Last year, during the Nuremberg Intergeo,<br />

there was a noticeable invasion of UAV’s<br />

(Unmanned Aerial Vehicles), commonly known<br />

as drones. This year many more types of UAV’s<br />

were on display in several booths; Quad-.<br />

Hex-, and Octocopters, named after the number<br />

of rotors (Figure 2).<br />

Planes, helicopters and gyrocopters<br />

The number of UAV underlines the shift towards<br />

exploring methods to gather huge amounts of<br />

data in order to meet the needs of the market;<br />

not only for 2D maps, but also for 3D computer-<br />

and scale-models. UAV’s can also be very<br />

useful for collecting information when the overlook<br />

of a site is more important than the accuracy,<br />

for example in crowd control and disaster<br />

management.<br />

Leading companies like Trimble and Leica also<br />

presented UAV’s at their booths. Trimble<br />

acquired Gatewing and Leica showed a two<br />

rotor UAV by Swiss-drone (Figure 3), confirming<br />

the potential of this technology. Spokesmen<br />

from both companies talked about filling the<br />

gap between traditional photogrammtry and<br />

terrestrial technologies.<br />

Many of these UAV’s have a number of limitations,<br />

such as being unstable, limited payload,<br />

36<br />

December <strong>2012</strong>


E v e n t<br />

Figure 4: Full-size Bundeswehr drone<br />

Figure 3: Two-rotor UAV by Swiss-drone<br />

vibration issues and problems in connection<br />

with all the necessary permits needed to operate<br />

these drones, as some countries do not<br />

allow private drones at all. However, in my<br />

opinion, they will become increasingly important<br />

in our profession.<br />

Several companies are already offering very<br />

small stabilizing devices for UAV’s to keep camera’s<br />

stable and aligned and the payload problem<br />

could be solved by using bigger UAV’s.<br />

There is a military version, a full size drone,<br />

on display in the Bundeswehr, German Army<br />

booth (Figure 4) which would be ideal.<br />

Another solution to these problems could be<br />

the gyrocopter, also known as autogyro (Figure<br />

5). According to the manufacturer these<br />

machines are very stable, even better than a<br />

helicopter and have sufficient payload for the<br />

big photogrammetric cameras like Ultra-cam.<br />

Additionally, the operational costs are very low<br />

compared to manned helicopters and planes;<br />

only € 60.00 per hour flight-time and, as they<br />

are manned, there are less problems in getting<br />

permits to operate them. The only thing you<br />

need is an area the size of a football pitch for<br />

take-off (100 m) and landing (10 m).<br />

Surveying Instruments<br />

Numerous manufacturers presented level instruments,<br />

rotating- and line-lasers, theodolites,<br />

tachymeters and other survey instruments in<br />

their booths. As mentioned before, the demand<br />

for these kinds of instruments for mass data collecting<br />

is declining. It seems as if the development<br />

of these instruments has stagnated. Of<br />

course, software is improving, accuracy is<br />

improving and performance is improving, but<br />

I did not notice any really new developments.<br />

There will continue to be a great demand for<br />

these “classic” instruments on construction sites<br />

and in gathering a limited amount of data, for<br />

example, to keep maps up to date. The only<br />

“traditional” surveying instrument which has<br />

improved significantly over the last few years<br />

is the laser scanner. Leica’s ScanStation P20 is<br />

definitely a forerunner (Figure 6).<br />

What is remarkable is the increasing number<br />

of manufacturers producing low budget instruments.<br />

The production numbers they mention<br />

are incredible, but until now they have been<br />

producing mainly for the home market.<br />

Figure 5: Gyrocopter, an alternative<br />

Figure 6: ScanStation P20. Also upright usable<br />

Latest News Visit www.geoinformatics.com December <strong>2012</strong><br />

37


E v e n t<br />

Figure 7: Low-budget instruments<br />

Figure 8: Used Leica laser scanner for sale<br />

Exporting, selling and after sales service<br />

abroad are still problematic, but the prices are<br />

amazing (Figure 7).<br />

Meanwhile some companies presented used<br />

instruments; top instruments at budget prices.<br />

Geotrade from the Netherlands, told me about<br />

the sale of a used scanner in order to map<br />

archaeological sites. In this case reliability and<br />

accuracy are of primary importance and<br />

speed is secondary, thus a used Leica scanner<br />

was the perfect and affordable solution (Figure<br />

8).<br />

The development of GNSS systems is continual.<br />

Within a few years four fully operational<br />

GNNS satellite systems will cover our globe;<br />

GPS from the USA, Glonass from Russia,<br />

Galileo from Europe and the Chinese Beidou<br />

system. India and Japan are also working on<br />

GNSS systems, but these are planned to operate<br />

locally. Many firms offer receivers to track<br />

satellite signals from these systems or a combination<br />

of them and to calculate coordinates<br />

with or without the use of all kinds of augmentation<br />

systems. The number of channels which<br />

can be tracked simultaneously is increasing.<br />

The record holder for this at this moment, as<br />

far as I know, is Javad. One of Javad’s<br />

receivers is capable of tracking and processing<br />

over 200 GPS, Glonass and Galileo signals<br />

simultaneously.<br />

The next challenge will be to solve the problem<br />

of indoor positioning. At the moment<br />

GNSS signals are too weak to be received<br />

inside buildings or tunnels. In densely populated<br />

areas with high rise skyscrapers so called<br />

‘urban canyons’ are created. They affect the<br />

GNSS signal by reflecting and disturbing it.<br />

Consumers are awaiting one system, usable<br />

outside and inside. The first attempts at providing<br />

this could be seen on this show; namely<br />

small transponders inside buildings and tunnels,<br />

to complement or enforce the GNSS signals.<br />

Miscellaneous<br />

A great number of exhibitors presented software<br />

for all kinds of purposes; 3D modelling<br />

and the use of tablets seems to have become<br />

the trend in this field. The demand for 3D printing<br />

is increasing; 3D models of buildings and<br />

even complete 3D city-models were shown on<br />

several stands (Figure 9).<br />

To visit all 520 exhibitors, is almost too much.<br />

One has to focus on certain aspects.<br />

Additionally, in between visiting the stands,<br />

there is the reunion function of a congress like<br />

this. Time flies when meeting former colleagues<br />

(Figure 10) and friends, and comparing<br />

notes. Before you know it, the exhibition<br />

doors are ready for closing.<br />

Internet: www.intergeo.de<br />

Figure 9: A 3D city model produced by a printer Figure 10: Colleagues back in 1985<br />

38<br />

December <strong>2012</strong>


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www.optech.com


I n t e r v i e w<br />

Stanford University’s Dr. Julie Sweetkind-Singer<br />

Long-Term Geospatial Data<br />

Stanford University’s Dr. Julie Sweetkind-Singer currently serves as both the assistant director of<br />

Geospatial, Cartographic and Scientific Data and Services and the head of the Branner Earth Sciences<br />

Library and Map Collections at the school. With her, Esri writer Jim Baumann discusses the importance<br />

and impact of long-term geospatial data storage.<br />

By Jim Baumann<br />

Baumann: As a recognized<br />

authority, please discuss the primary<br />

considerations for archiving and<br />

preserving digital information over<br />

the long term.<br />

Sweetkind-Singer: From a<br />

librarian’s point of view, digital<br />

data is very different and much<br />

more difficult to preserve for extended<br />

periods of time than paperbased<br />

data. For example, a book<br />

on acid-free paper can be kept on<br />

a shelf in a cool, dark place for<br />

100 years, and if it is well taken<br />

care of, one would expect it to<br />

remain in pretty good shape. With<br />

digital information, you have to<br />

implement a process from the very beginning that will allow you to<br />

preserve it well into the future. This includes making sure that the<br />

data is well managed technically, that metadata exists in order to<br />

ensure someone in the future will understand what the data represents<br />

and how it has been stored, and that legal documents are in<br />

place indicating how the data may be used in the future. It’s important<br />

for digital archivists to develop long-term preservation plans that<br />

include both technical and legal stipulations. Unless digital files are<br />

correctly preserved and documented, we run the risk of losing the<br />

information, which is then unavailable to future generations.<br />

Stanford University’s Dr. Julie Sweetkind-Singer<br />

Baumann: How did the National<br />

Geospatial Digital Archive [NGDA]<br />

come about and what role does it<br />

play in preserving geospatial data<br />

Sweetkind-Singer:<br />

The NGDA [www.ngda.org] is a<br />

collaborative research effort<br />

between Stanford University and<br />

the University of California at Santa<br />

Barbara, with funding from the<br />

Library of Congress [LC], to examine<br />

the issues surrounding the longterm<br />

preservation of geospatial<br />

data. The program funded by LC is<br />

called the National Digital Infor -<br />

mation Infrastructure and Preser -<br />

vation Program [NDIIPP]. One of<br />

the goals of the NGDA was to set up the structure for a preservation<br />

network and eventually add more partners covering a variety of<br />

regions around the United States including both libraries and state<br />

archives. Maintaining geospatial data in various locations is one<br />

important aspect for its long-term preservation in case of man-made<br />

or natural disaster. In addition, I think it’s important to remember<br />

that many organizations may produce geospatial data but aren’t<br />

involved in its collection or preservation. However, the mandate for<br />

libraries and government archives is to preserve valuable documents<br />

for the future.<br />

Baumann: From an educator’s perspective, what are some of the<br />

key reasons to preserve geospatial data<br />

Baumann: What procedures has the NGDA recommended to facilitate<br />

the long-term storage of geospatial data<br />

Sweetkind-Singer: For both educational and research purposes,<br />

it is critical that we preserve data for the long term. For example,<br />

the opportunity to trace the development of a region using historical<br />

maps is useful to researchers who are studying population growth<br />

or the change from an agriculture-based to an industry-based economy.<br />

A historian may want to know when the railroad first reached<br />

the study area; what effect the railroad played on it; what agricultural<br />

crops formerly grew there; in which direction the area began<br />

its expansion; when were major roadways built through it; and which<br />

cities did they connect. You can analyze all this over time by studying<br />

geospatial data, but only if you have the content to do so.<br />

Preserving historic data and continually adding to that collection on<br />

a regular basis is a critical part of change detection research.<br />

Sweetkind-Singer: You have to assume that both the software<br />

and hardware components that originally created the data will<br />

change in the future. Given that, it’s important to have metadata<br />

for all geospatial data that is archived including details about the<br />

software that was used to create it and related white papers. We<br />

developed a registry to track information about formats because<br />

they will certainly change over time. This information was the basis<br />

of the Library of Congress’ Geospatial Content section on its<br />

Sustainability of Digital Formats website [www.digitalpreservation.gov/formats/<br />

content/gis.shtml]. Regarding the preservation<br />

of remotely sensed imagery, you need to know which sensors were<br />

used; when they were updated; and what software was used to<br />

interpret the data format.<br />

40<br />

December <strong>2012</strong>


I n t e r v i e w<br />

Storage<br />

Legal documents are another important part of the long-term data<br />

storage process. We drafted agreements with the participating<br />

NGDA members about collection development policies specifying<br />

what each institution is going to collect and curate. There is another<br />

contract that brokers the relationship between copyrighted or<br />

licensed data and the university that wants to archive it. Data<br />

providers want their data preserved, but as a university we have to<br />

have assurances that our faculty and students can use that data for<br />

research and educational purposes. So we have contracts that specify<br />

the acceptable use of the archived data. I think long-term data<br />

preservation is a matter of developing a plan that includes technical<br />

solutions from the IT department, as well as recommendations<br />

from librarians, archivists, and lawyers to make sure geospatial<br />

data is properly and legally preserved for the future.<br />

Baumann: Please describe some of the key datasets that you have<br />

collected for the Stanford University archive.<br />

Sweetkind-Singer: One of the first datasets we archived was<br />

the David Rumsey digital map collection [www.davidrumsey.com].<br />

David Rumsey is a map collector in San Francisco who has spent<br />

many years building a fine collection of maps, atlases, and books<br />

detailing the growth of cartography in the United States during the<br />

eighteenth and nineteenth centuries. About 10 years ago, he decided<br />

to enhance his collection by scanning it and making those<br />

images available to the general public. Today, he has more than<br />

29,000 items in the digital collection. David uses the digital maps<br />

in a variety of ways that are impossible with the printed versions.<br />

However, he doesn’t have a robust and secure way to store the<br />

digital images for the future. Working together, we were able to<br />

provide secure, long-term preservation of the imagery as well as<br />

the accompanying metadata.<br />

We also worked with the California Spatial Information Library<br />

[CSIL], a government agency tasked with maintaining geospatial<br />

data for the state of California. [CSIL collects] transportation data,<br />

Landsat imagery, SPOT imagery, and other content. CSIL is the primary<br />

source of California statewide data. In addition, we have<br />

downloaded data from the USGS [US Geological Survey] Seamless<br />

Data Warehouse. In conversations with John Faundeen, the<br />

archivist at the USGS EROS [Earth Resources Observation and<br />

Science] Data Center, he was happy to hear that we were downloading<br />

high-resolution ortho-imagery of the San Francisco Bay<br />

Area from the site and archiving it as part of our collection process.<br />

Baumann: As Stanford continues to build its spatial data archives,<br />

what do you hope to add to your collection in the near future<br />

Sweetkind-Singer: We have collected a fair amount of high-resolution<br />

orthoimagery for the Bay Area and recently added the elevation<br />

data that goes along with it so that researchers can do threedimensional<br />

modeling using the imagery sitting on top of the<br />

elevation data. I would also like to collect more datasets for the<br />

California National Parks and the state’s coastline data. Important<br />

content for our collection is local data from places like the Hopkins<br />

Marine Station, which is Stanford’s marine biology station in<br />

Monterey [California]. [At Hopkins,] they’ve collected a large amount<br />

of heterogeneous data types: imagery, fish populations, transect<br />

information, and weather data. Our future data collection activities<br />

range from very specific content such as the Hopkins Marine Station<br />

data to very broad layers like the National Elevation Dataset for the<br />

United States.<br />

Baumann: Are standard procedures for the preservation of geospatial<br />

data widely implemented in libraries and government archives<br />

today<br />

Sweetkind-Singer: I think that the long-term preservation of data<br />

is something that is just emerging as an issue for libraries. While<br />

many libraries and state archives are aware of the problem, they<br />

don’t really know how to tackle it yet. It may seem at first like an<br />

overwhelming task, but breaking the procedure down into its component<br />

parts will make the process achievable. One important effort<br />

that has emerged over the past few years, also funded by NDIIPP, is<br />

the Geospatial Data Preservation Resource Center [http://geopreservation.org].<br />

This site has been designed specifically to bring<br />

together “freely available web-based resources about the preservation<br />

of geospatial information.” It also gives practitioners a place to<br />

start, discover best practices, and get their questions answered. As<br />

we go forward, we will figure out sustainable methods to manage,<br />

archive, preserve, and create access to digital information, but relatively<br />

speaking, we’re in the early days. It’s a process that we’ll<br />

develop and refine as we continue to work with this type of content.<br />

Long-term data archiving is a very interesting and challenging area<br />

for libraries because we are building the digital collections of the<br />

future. Libraries have an important role to play in making sure that<br />

we provide proper stewardship and preservation of geospatial data.<br />

Jim Baumann, Esri Writer<br />

Latest News Visit www.geoinformatics.com December <strong>2012</strong><br />

41


N e w s l e t t e r<br />

The ISPRS Foundation<br />

The ISPRS Foundation was developed in 2004 by ISPRS to pursue<br />

its philanthropic endeavours. Its goals are to provide grants for a<br />

range of purposes that will assist those who wish to further their<br />

knowledge, skills and experience in the photogrammetry, remote<br />

sensing and spatial information sciences and technologies.<br />

It is a non-profit entity, managed by a Board of 11 Trustees who<br />

are responsible for fund raising, investment, management and<br />

approval for grants of Foundation funds. Trustees do not receive<br />

any salary or other compensation for their services. Examples of<br />

activities supported by The ISPRS Foundation:<br />

Sponsorship of International Workshops – to fund, support or cosupport<br />

the education, training and technical program aspects of<br />

international scientific workshops sponsored by the ISPRS and other<br />

international organizations.<br />

Research Initiatives - for advancing the capabilities and applications<br />

of the ISPRS sciences, technologies and disciplines to the benefit<br />

of the international community.<br />

Travel Grants - to enable young authors, distinguished speakers,<br />

and officially designated national Delegates, especially from developing<br />

countries, to participate in ISPRS sponsored events.<br />

Scholarships and Fellowships - to support professional development<br />

in the Photogrammetry, Remote Sensing and Spatial<br />

Information (P&RS&SI) sciences and technologies.<br />

Awareness Education - to stimulate youth (K-12), public awareness,<br />

and participation in the P&RS&SI sciences and technologies to help<br />

meet the growing worldwide need for trained and educated practitioners<br />

Tools and Literature - to solicit, assemble, translate if needed, underwrite<br />

subscriptions, and distribute textbooks, technical publications,<br />

and basic tools and equipment that include the ISPRS disciplines.<br />

Awards - to provide international recognition for young authors,<br />

research, publications, training/education, and significant achievements.<br />

Since 2004 The ISPRS Foundation:<br />

• Received more than $US210,000 in donations and grants that are being used to support The ISPRS<br />

Foundation funding activities<br />

• Received large donations of up to $US25,000 from major spatial information companies;<br />

• The Foundation continues to receive regular sizable grants from the commercial sector.<br />

• Is supported by leading representatives from academia, government and business in the spatial information<br />

industry as Trustees of the Foundation Board.<br />

• Provided grants to more than 50 individuals from developing countries in Africa, Asia and Latin America<br />

to attend workshops and conferences to improve their knowledge and skills in spatial information sciences<br />

• Funded prizes for CATCON (Computer Aided Teaching Contest) events in 2006, 2008 and <strong>2012</strong> to<br />

encourage the development of freely available software for teaching in spatial information processing<br />

and management.<br />

• Funded major awards in 2008 and <strong>2012</strong> for outstanding performance by an individual in the spatial<br />

information sciences<br />

• Provided grants for Science Initiatives.<br />

The ISPRS Foundation needs your donation to continue its work.<br />

Go to: www.isprs.org/foundation/donations<br />

42<br />

December <strong>2012</strong>


E v e n t<br />

Esri European User Conference<br />

Partners and Best Practices<br />

With as many as ten sessions going on at once, every attendee could choose his or her own individual<br />

programme of Technical Workshops and User Presentations at Esri’s European User Conference in<br />

Oslo.<br />

By Remco Takken<br />

ArcGIS demos and previews<br />

Esri CEO Jack Dangermond<br />

On the main stage, David Cardella previewed<br />

some ArcGIS Apps for iOS,<br />

Android and Windows. A sneak<br />

preview included Arc GIS Online on Win -<br />

dows 8, so that attendees experienced the<br />

‘no toolbars’ phenomenon for the first time<br />

within a GIS context. Norwegian Esri partner<br />

Geodata hosted a three day GIS revue<br />

full of surprises, locally and internationally.<br />

Jack Dangermond<br />

In his traditional keynote speech, Esri CEO<br />

Jack Dangermond notably used the word<br />

‘footprint’ to his European listeners. In general,<br />

ecological footprints of human activities<br />

may be seen as a bad thing, meaning<br />

that they degene rate the planet we live on.<br />

As Dangermond stated, one can also view<br />

it as a positive contribution to the world:<br />

‘geographers make a great collective footprint<br />

with their work’. Dangermond also<br />

dwelled a few moments on Esri’s new focus<br />

on developers. In fact, he alluded to the<br />

acquisition of Geoloqi, a platform for location-based<br />

services (LBS). The according<br />

press release was issued the following day.<br />

Geoloqi<br />

Geoloqi will merge its staff and product<br />

capabilities into Esri’s existing geospatial<br />

platform and launch a new Esri Research<br />

and Development (R&D) Center in Portland,<br />

Oregon, where Geoloqi is headquartered.<br />

Geoloqi enables rapid development of<br />

cross-platform, geography-based applications<br />

using a single API in any development<br />

language. Geoloqi provides specialized<br />

algorithms that help preserve battery life<br />

while location runs in the background or at<br />

stated intervals. “Geoloqi’s capabilities and<br />

relationships with the developer community<br />

will build on Esri’s already impressive suite<br />

of ArcGIS products to create more dynamic<br />

mobile and web applications”, said<br />

Dangermond in an official statement, published<br />

shortly after his keynote speech in<br />

Oslo. The Esri R&D Center in Portland will<br />

be focused on developing new tools and<br />

functionality to create improved, integrated<br />

products that accentuate the strength of a<br />

combined platform.<br />

Nordic flavour<br />

A distinct Norwegian touch was added to<br />

Esri’s European User Conference in Oslo,<br />

and not only by featuring a highly blonde<br />

Geodata GIS operator on the main stage.<br />

With his bearded Norwegian colleague he<br />

ably showed some locally developed applications<br />

for safer ship navigation, published<br />

in ArcGISOnline. Nordic examples on the<br />

big screen: hot spots for oil, gas or fishing<br />

activity, based on spatial analysis and made<br />

for NCA Risk Assessment. Very impressive<br />

was a ten meter deep 3D buffer deep down<br />

in the sea. Vast improvements in fairway<br />

design are the end result. Norwegian oil<br />

and gas company Statoil summarized what<br />

is easily forgotten: “GIS data management<br />

may suggest it is all about routines and compliance,<br />

but to end-users it’s about bringing<br />

value.” Statoil presented a vast array of<br />

44<br />

December <strong>2012</strong>


E v e n t<br />

BlomStreet aka CycloMedia, with Streetview like imagery for professional use.<br />

ArcGIS demos and previews<br />

automated specialist geo data for mass web<br />

use, notably employing SAFE Software’s<br />

Feature Manipulation Engine FME for interoperability.<br />

Last keynote by the Norwegian<br />

Red Cross organisation showed a different<br />

side of Northern Europe, it’s humanistic<br />

view on life. Instead of boasting his achievements<br />

in his own country, in a speech called<br />

‘The Geography Of Risks’, Sven Mollekleiv<br />

pointed out the need for access in troubled<br />

countries in faraway continents.<br />

Blom ASA<br />

This year’s User Conference took place in<br />

Oslo’s Congressenter, which is located opposite<br />

of the Norwegian Labour Party. It’s also<br />

near the heart of the infamous ‘Anders<br />

Breivik Attack’ of last summer. Outside the<br />

venue, building and renovation activities<br />

could still be seen. Inside, Blom ASA presented<br />

their BlomSTREET panorama pictures<br />

made by CycloMedia, showing recent<br />

‘before’ and ‘after’ bombing situations of<br />

Oslo’s inner city. Also shown was the<br />

GlobeSpotter application, with its measuring<br />

possibilities. One of the examples featured<br />

an ArcMap plug-in for street view pictures<br />

by Belgian implementation partner SIGGIS .<br />

Powel<br />

Asset management requirements of water<br />

powered energy utilities in Norway have<br />

specific needs. Energy company Powel calls<br />

its solution ‘ArcGIS for Smart Generation’.<br />

Oftentimes, roads in the North disappear<br />

under thick layers of snow or ice. Accurate<br />

location information about unsafe ice for<br />

skating and skiing is needed for maintenance,<br />

during unforeseen outages and general<br />

crisis management in mid-winter. For<br />

its daily processes, Powel has detailed information<br />

on water levels in their regulated<br />

river courses. Added value of Powel’s data<br />

is their flood warning system. The worst<br />

case scenario for energy producers regarding<br />

flooding is of course a dam break. In<br />

some impressive visualisations, a number of<br />

those scenarios were worked out.<br />

Powel explained some of the differences<br />

between its ‘emergency’ and ‘regular’<br />

mobi le communication.<br />

Exelis<br />

In a live demo called ‘change detection based<br />

on SAR data in ArcGIS’ by Exelis, ArcGIS<br />

plus ENVI 5.0 and SARscape Modules for<br />

ENVI showed some fast geocoding. A onepixel<br />

accuracy proved good enough for flood<br />

mapping, but the final map on display<br />

impressed with real-time change detection<br />

results between two ‘pictures’ at the live demo.<br />

Geocom<br />

Swiss Esri partner Geocom showed its wind<br />

park data model within an elaborate infrastructure<br />

management system and deploying<br />

ArcGIS and Geonis as core geospatial products<br />

Supporting Wind Park Projects.<br />

AED-SICAD<br />

AED-SICAD explained the functionalities of<br />

their enduring ArcFM UTsystem along the<br />

Latest News Visit www.geoinformatics.com December <strong>2012</strong><br />

45


E v e n t<br />

fact that most German municipalities are<br />

‘multi-utilities’. Field workers were also highlighted.<br />

Dutch water utility Brabant Water<br />

lets its people carry around 20-30 gB on<br />

their laptops, enabling on the spot network<br />

tracing and full GIS functionality, said AED-<br />

SICAD’s Florian Brandi-Dohrn.<br />

INSPIRE, SDI’s, Conterra and FME<br />

German Esri Gold partner Conterra showed<br />

its INSPIRE compliant SDI portal in Saxon,<br />

which runs on out-of-the-box Esri software.<br />

All WFS, Shape and CS-W data go<br />

through an FME-driven translation schema to<br />

get those files ready for search engines.<br />

During a live demo, attendees saw csv-files<br />

being turned into Shape (SHP). More than<br />

once during this conference, the notion was<br />

felt that successful data-interoperability within<br />

traditional GIS often equals FME. The<br />

folks at Conterra are good with it, too. In an<br />

almost intimidating fashion Conterra’s Mark<br />

Döring quickly built up a complete FME<br />

Workbench. It looked rather convincing, but<br />

then he said: “now, this isn’t INSPIRE compliant.”<br />

His point: INSPIRE should just be a technical<br />

thing in the background. “Com pare it<br />

to how exactly GPS communicates with your<br />

device: nobody knows exactly how it works.<br />

And so it should be when dealing with<br />

INSPIRE.”<br />

Solutions in full swing<br />

Paradoxically, in Oslo, the absence of a big<br />

new ArcGIS release gave way to a plethora<br />

of factual information on the actual, dayto-day<br />

use of ArcGIS and its add-ons by<br />

implementation partners from all over<br />

Europe. It was great to witness all of those<br />

solutions in full swing. Even during the closing<br />

remarks, nobody stood up to enquire<br />

about the possible contents of next year’s<br />

version of ArcGIS. The absence of this halfexpected<br />

ritual by hi-end users, was partly<br />

due to a slightly disturbing Powerpoint slide<br />

depicting some guy working with mobile<br />

GIS in Lederhosen. The next edition of Esri’s<br />

European User Conference will be in<br />

München, Bayern, Germany, October 23-<br />

25, 2013, right after the Octoberfest.<br />

Internet: www.esri.com/events/euc/index.html<br />

46<br />

December <strong>2012</strong>


E v e n t<br />

OpenStreetMap’s 6th International Conference<br />

State of the Map<br />

At the start of September, a wide mixture of people headed to Tokyo for OpenStreetMap’s 6th annual<br />

international conference known as “State of the Map”(SotM). The conference first ran in 2007 as a<br />

way for the dedicated volunteer mappers and early adopters to meet, having known each other online<br />

as they added to a very bare map and programmed the initial tools needed. The OpenStreetMap(OSM)<br />

user base has grown exponentially now beyond 650,000 registered users, and so the conference<br />

has grown to include people with various interests in the project, several having never made a contribution<br />

to the map or previously met the community.<br />

By Gregory Marlor<br />

Waste Map, (source: OpenStreetmap)<br />

OpenStreetMap to the<br />

Rescue<br />

OpenStreetMap rocketed in international<br />

awareness following the<br />

devastating earthquake in Haiti at<br />

the start of 2010. Many SotM<br />

<strong>2012</strong> delegates represented the<br />

efforts of HOT (Humanitarian<br />

Open Street Map Team) and other<br />

aid organizations. The first conference<br />

day was given the title “OSM<br />

To The Rescue”. We were updated<br />

on continued work and support for<br />

Haitian mappers, and projects in<br />

countries that include Afghanistan,<br />

Indonesia, and Cambodia. Not<br />

forgetting the host country, Japan,<br />

which also held a stream of talks<br />

in the native language. Topics covered stories<br />

of events that had been organized, new<br />

tools, methods, and resources being used,<br />

and upcoming projects looking for support.<br />

A standard question at the annual conference<br />

was “When will OpenStreetMap coverage<br />

be complete” until everyone moved<br />

onto the question “How much detail counts<br />

as complete”. We now see the road network<br />

and associated facilities complete<br />

across most of the developed world, even<br />

surpassing coverage by national mapping<br />

agencies in some areas. Large users of map<br />

data have started to become interested and<br />

focus is turning to navigation applications.<br />

The SatNav business is fast paced at the<br />

moment, so it’s good to know what’s happening<br />

and who else is working with community<br />

created data. Technical issues are the<br />

main concern, dealing with such vast information<br />

and ever growing calculations.<br />

Discussion wasn’t just limited to car navigation,<br />

but reached over to include emergency<br />

routing, and public transport systems.<br />

This area has a range of complete new-comers<br />

to SotM regulars such as Raul Kraut -<br />

hausen of WheelMap.org. It’s great to see<br />

an update on how the website is helping<br />

people in more countries find step-free<br />

access to shops, buildings, and neighbourhoods.<br />

We watched a TV advert filmed and<br />

funded by Google that showed Open Street -<br />

Map to advertise WheelMap.org.<br />

Mapping In Memory<br />

Last summer, at the the State of the Map EU<br />

conference I had listened to Kinya Inoue<br />

(known as Ikiya), a resident of Fukushima,<br />

tell how he had gone out to map the<br />

changes to the road network. He showed<br />

screenshots of a residential area he had surveyed<br />

and the whole area covered by the<br />

sea. It would be easy to look at the frustration<br />

of time consuming work being wasted,<br />

but Inoue’s thoughts are with those<br />

who have lost their homes and perhaps<br />

loved ones. He hopes that with<br />

time his GPS traces will be able to<br />

provide a memory of places that can<br />

now longer be visited. The talk was<br />

repeated this year and despite hearing<br />

it before I struggled to hold in<br />

my tears. Continuing on the recalling<br />

of events, Kinya pointed out he<br />

was aware the coast line moved by<br />

several metres and this would need<br />

resurveying. A beautiful coastline<br />

and landscape, in his talk last year<br />

not mentioned but now he revealed<br />

to us how he had been unable to<br />

visit the places he knew and loved<br />

for over a year following the devastating<br />

work of the tsunami. Not confidently<br />

fluent in English, yet the whole room was<br />

captivated and gripped on each word read<br />

out. With time, OpenStreetMap and its need<br />

for resurveying was part of the grieving process.<br />

If there is one talk to watch, it is this<br />

one that took place at midday on Thursday.<br />

Gregory Marler is a web developer, data lover, and geospatial consultant.<br />

When he’s not having fun working or singing, he’s getting lost<br />

creating a map and blogging at LivingWithDragons.com<br />

The full schedule of the conference, complete with video recordings<br />

and slides is available at http://wiki.osm.org/SotM12<br />

Events across the world are happening each week, a calendar is<br />

shown on the OSM Wiki homepage. http://wiki.osm.org<br />

The main map (not including all the different subject-focused renderings)<br />

can be seen at www.openstreetmap.org<br />

Latest News Visit www.geoinformatics.com<br />

47<br />

December <strong>2012</strong>


C o l u m n<br />

Mobile GIS in <strong>2012</strong><br />

Since this is the last column for <strong>2012</strong>, I thought it might be good to reflect on<br />

the year. Mobile remains driven by consumers. Smartphones and tablets, are<br />

replacing PC’s and laptops. A slew of new products have been released; from<br />

the iPhone 5, and the new smaller iPad to the entrance of Microsoft into the<br />

tablet market with the Surface. The map wars began in earnest, as both Apple<br />

and Amazon entered the fray. And venture capital money continues to pour<br />

into any startups with ‘geolocation’ in their mission statement.<br />

Matt Sheehan is Principal and Senior<br />

Developer at WebmapSolutions. The company<br />

build location focused mobile applications<br />

for GIS, mapping and location<br />

based services (LBS). Matt can be<br />

reached at matt@webmapsolutions.com.<br />

C O L U M N<br />

Business adoption remains slow. The public sectors,<br />

both local and national, have been quicker<br />

to explore the possibilities mobile brings to their<br />

organisations. The old paradigm of pen and paper use<br />

by field workers remains solidly in place. This is partly<br />

an organisational fear of new technology, but also the<br />

tendency of (often older) field workers to be late<br />

adopters. Surprisingly in many organisations GIS<br />

remains a desktop application only. Many organisations<br />

in disaster management for example rely on desktop<br />

GIS apps generating paper maps for distribution to<br />

field workers. Presumptions that mobile technology will<br />

end the days of non-digital means of gathering data for<br />

example, may be wide of the mark. In many cases<br />

mobile may compliment non digital field processes.<br />

The Term GIS<br />

The GIS industry is coming from out of the shadows.<br />

That has long been the hope. To broaden its application<br />

and appeal. Increasingly there is discussion that<br />

the term GIS should be retired. With the launch of platforms<br />

like ArcGIS Online, with its wider appeal to a<br />

broader spectrum of users, there may be a point to this<br />

argument. There is little doubt mobile is changing the<br />

playing field. We have a fragmented geospatial marketplace.<br />

Location based services(LBS) are consumer<br />

focused and the main driver of new players like Apple<br />

and Amazon. Money and media attention is centered<br />

here. Esri talk often about ‘non-GIS users’. With story<br />

maps and embedding maps in documents, certainly the<br />

emphasis is broadening the user base. Back end integration<br />

with other business systems such as SAP, is also<br />

high on Esri’s radar. Again appealing to the business<br />

non-GIS community. So we live in changing times. A<br />

time of churn and emergence of a new immature<br />

paradigm; which is mobile.<br />

ArcGIS Online<br />

After being broadsided by Google maps in 2006, Esri<br />

have fired back with ArcGIS Online. This is a truly innovative<br />

cloud based cross platform, cross device solution<br />

for publishing and sharing maps. Organisations with<br />

an ArcGIS Online account can now publish data from<br />

multiple different sources; shapefiles, ArcGIS endpoints,<br />

KML, CSV, GRX. Data access can be controlled by<br />

ArcGIS online account administrators, and map groups<br />

48<br />

set up with open or restricted access. Solution templates<br />

are being built by Esri and development companies.<br />

These are web or mobile applications which are easy<br />

to implement from within ArcGIS Online, and configure.<br />

Some are designed for GIS users others a broader<br />

audience. Published, so called web maps, are easy to<br />

load into mobile apps, they can also be embedded in<br />

documents such as Word and Excel. ArcGIS Online has<br />

been in development for over 4 years. It is a truly innovative<br />

product, whose impact has only just begun to be<br />

felt.<br />

Expectations for 2013<br />

Looking into the crystal ball, what do we anticipate for<br />

2013 As a mobile geospatial development company,<br />

extrapolating from <strong>2012</strong>:<br />

1) The continued growth of interest from larger organisations,<br />

looking to build end to end mobile geospatial<br />

apps or initial prototypes.<br />

2) Even given tight budgets, but with established GIS<br />

departments, growing public sector adoption of<br />

Mobile GIS.<br />

3) The evolution of true offline mobile apps. Esri and<br />

others are feverishly working on disconnected solutions.<br />

4) Increasing popularity of ArcGIS Online, broadening<br />

the appeal and reach of geospatial data.<br />

5) More focus and discussion on the performance of<br />

mobile web GIS apps versus hybrid.<br />

6) The increasing convergence and competition<br />

between the major providers of geospatial solutions;<br />

Esri, Google Maps, MapQuest, Apple, Amazon.<br />

7) Increasing popularity of responsive web design.<br />

Where a single application can be styled based on<br />

the device loading the app.<br />

Final Thoughts<br />

Mobile is increasingly more popular. New smartphones<br />

and tablets have been regularly launched throughout<br />

<strong>2012</strong>. Ever more mobile apps are being released for<br />

both browser consumption and via the various app<br />

stores. Private sector business adoption has been slow.<br />

The geospatial mobile market remains fragmented. But<br />

with the release of new platforms such as Esri’s ArcGIS<br />

Online, we anticipate mobile geospatial technology will<br />

see both broader and wider adoption.<br />

December <strong>2012</strong>


C a l e n d a r 2 0 1 2 / 2 0 1 3 /<br />

A d v e r t i s e r s I n d e x<br />

December<br />

03-05 December European Space Solutions ‘Discover<br />

what space brings to your life’<br />

Central Hall Westminster, London, U.K.<br />

Internet: www.space-solutions.eu<br />

04-05 December European LiDAR Mapping Forum <strong>2012</strong><br />

Salzburg, Austria<br />

Internet: www.lidarmap.org/ELMF<br />

10-14 December FIG Commission 3 Workshop<br />

‘Spatial Information, Informal Development,<br />

Property and Housing’<br />

Athens, Greece<br />

E-mail: sagi.dalyot@ikg.uni-hannover.de<br />

Internet: http://bit.ly/FIG3_Athens<strong>2012</strong><br />

11-12 December MapInfo Professional Foundation<br />

Level Training Course<br />

CDR Group, Hope, Derbyshire, U.K.<br />

E-mail: sales@cdrgroup.co.uk<br />

Internet: www.cdrgroup.co.uk/train_mi2info.htm<br />

13-16 December Gi4DM <strong>2012</strong><br />

UT, Enschede, The Netherlands<br />

E-mail: info@gi4dm.net<br />

Internet: www.gi4dm.net/<strong>2012</strong><br />

Januari 2013<br />

21-23 January 9th Annual Defence Geospatial<br />

Intelligence (DGI) Conference & Exhibition<br />

QEII Conference Centre, London, U.K.<br />

E-mail: dgi@wbr.co.uk<br />

Internet: www.wbresearch.com/dgieurope/home.aspx<br />

24-25 January GeoDesign Summit<br />

Esri, Redlands, CA, U.S.A.<br />

Internet: www.geodesignsummit.com<br />

Februari<br />

06-08 February CEGeoIC Conference 2013<br />

Bogota, Colombia<br />

Internet: http://CEGeoIC.net<br />

11-13 February International LiDAR Mapping Forum<br />

2013<br />

Denver, CO, U.S.A.<br />

Internet: www.lidarmap.org/ILMF.aspx<br />

14-15 February IV International Conference<br />

“Geodesy, Mine Survey and Aerial Photography.<br />

At the turn of the centuries”<br />

Novotel-Hotel, Moscow, Russia<br />

Internet: http://con-fig.ru/r=indexen<br />

27-28 February International Workshop “The Role of<br />

Geomatics in Hydrogeological Risk”<br />

Padua, Italy<br />

Internet: www.cirgeo.unipd.it/geomatics4risk<br />

March<br />

06-08 March GeoViz_Hamburg 2013: Interactive<br />

Maps That Help People Think<br />

Hamburg, Germany<br />

E-mail: geoviz@geomatik-hamburg.de<br />

Internet: www.geomatik-hamburg.de/geoviz<br />

07-08 March EUROGI Conference 2013<br />

Dublin, Ireland<br />

Internet: www.eurogi.org/conference-2013.html<br />

11-13 March “Wavelength 2013”<br />

Glasgow, U.K.<br />

E-mail: andy@rspsoc-wavelength.org.uk<br />

Internet: www.rspsoc-wavelength.org.uk/wavelength2013<br />

24-28 March ASPRS 2013 Annual Conference<br />

Baltimore Marriott Waterfront Hotel, Baltimore, MD, U.S.A.<br />

Internet: www.asprs.org<br />

April<br />

15-17 April 19th Annual CalGIS Conference<br />

Westin Long Beach, CA, U.S.A.<br />

Internet: www.calgis.org<br />

21-23 April Joint Urban Remote Sensing Event<br />

(JURSE 2013)<br />

Sao Paulo, Brazil<br />

Internet: www.inpe.br/jurse2013<br />

23-25 April ENC 2013 ‘The European Navigation<br />

Conference’<br />

Vienna, Austria<br />

Internet: www.enc2013.org<br />

25-26 April 3D Documentation Conference<br />

Marina Mandarin Hotel, Singapore<br />

Internet: www.3d-documentation-conference-2013.com<br />

May<br />

13-16 May Geospatial World Forum<br />

Beurs/ World Trade Center, Rotterdam, The Netherlands<br />

E-mail: info@geospatialworldforum.org<br />

Internet: www.geospatialworldforum.org<br />

21-22 May Location Intelligence + Oracle Spatial<br />

and Graph User Conferences 2013<br />

Ronald Reagan Building and International Trade Center,<br />

Washington, D.C.<br />

Internet: www.oracle.com<br />

21-24 May ISPRS Workshop “High-Resolution Earth<br />

Imaging for Geospatioal Information”<br />

Hannover, Germany<br />

Internet: www.ipi.uni-hannover.de/isprs_hannover2013.html<br />

29-31 May UDMS 2013, 29TH Urban Data<br />

Management Symposium<br />

University College London, London, U.K.<br />

E-mail: info@udms.net<br />

Internet: www.udms.net<br />

June<br />

03-06 June Hexagon 2013 (ERDAS, Intergraph,<br />

Leica, Metrology)<br />

Las Vegas, NV, U.S.A.<br />

Internet: http://<strong>2012</strong>.hexagonconference.com<br />

16-22 June 13th International Multidisciplinary<br />

Scientific GeoConference & EXPO SGEM2013<br />

Albena Resort & SPA, Bulgaria<br />

E-mail: sgem@sgem.org<br />

Internet: www.sgem.org<br />

17-21 June FMEdays 2013<br />

Berlin, Germany<br />

E-mail: info@fmedays.de<br />

Internet: www.fme-days.com<br />

18-20 June MundoGEO#Connect LatinAmerica 2013<br />

São Paulo, Brasil<br />

Internet: http://mundogeoconnect.com<br />

25-27 June RIEGL International Airborne, Mobile,<br />

Terrestrial, and Industrial User Conference 2013<br />

Marriott, Vienna, Austria<br />

E-mail: userconference2013@rieglusa.com<br />

Internet: www.riegl.com<br />

02-05 July GI_Forum 2013<br />

Salzburg, Austria<br />

Internet: www.gi-forum.org<br />

July<br />

08-12 July Esri International User Conference<br />

San Diego Convention Center, San Diego, U.S.A.<br />

Internet: www.esri.com/events<br />

August<br />

25-29 August SPIE Optics + Photonics 2013<br />

San Diego Convention Center, San Diego, CA, U.S.A.<br />

Internet: http://spie.org/opticsphotonics.xmlWT.mc_id=RCal-OPW<br />

25-30 August 26th International Cartographic<br />

Conference<br />

Dresden, Germany<br />

E-mail: manfred.buchroithner@tu-dresden.de<br />

Internet: www.icc2013.org<br />

September<br />

04-06 September Unmanned Aerial Vehicles in<br />

Geomatics (UAV-g)<br />

Rostock University, Rostock, Germany<br />

Internet: www.uav-g.org<br />

04-06 September RSPSoc 2013<br />

Glasgow, U.K.<br />

E-mail: rspsoc@nottingham.ac.uk<br />

Internet: www.rspsoc.org<br />

09-13 September AGSE 2013 “The Geospatial<br />

Momentum for Society and Environment”<br />

CEPT University, Ahmedabad, India<br />

Internet: http://applied-geoinformatics.org<br />

Please feel free to e-mail your calendar notices to: calendar@geoinformatics.com<br />

Advertisers Index<br />

CHC www.chcnav.com 21<br />

DATEM www.datem.com 12<br />

ERDAS www.erdas.com 52<br />

Esri www.esri.com 13<br />

FOIF www.foif.com.cn 49<br />

GMA www.con-fig.ru 46<br />

Global Geo Supplies www.softmouse3d.com 51<br />

Leica Geosystems www.leica-geosystems.com 2<br />

Microsoft UltraCam www.iFlyUltraCam.com 17<br />

Optech www.optech.com 39<br />

Pacific Crest www.pacificcrest.com/adl 9<br />

SuperMap www.supermap.com 43<br />

Geneq<br />

www.geneq.com<br />

33<br />

Topcon www.topcon.eu 26<br />

50<br />

December <strong>2012</strong>

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