EuroSDR Projects - Host Ireland

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176 method 1 indicates land cover change as clusters of pixels method 2 indicates ATKIS objects that have changed - more generalised approach – operator does not necessarily see reason for change indication methods are designed for different scales (1:2.000 versus 1:20.000) requirements: • detected as “new” but “not new”: < 25% • detected as “not new” but “new”: 0% quantitative analysis will be provided for the final report Steinnocher presents some results from the Austrian test site first general evaluation results indicate that change map is very helpful for operator despite sceptical attitude of operator at the beginning of the process a number of actual changes could be detected by means of the change map that were overseen in the first update cycle (without change map) detailed evaluation will be provided for final report as for the German test site the two CD methods were compared for the Austrian test site - resulting change maps are rather different, due to different target scale Olsen gives a summary on the Danish results tuning of classes is required, e.g. roads not in data base – too many changes also problem with generalisation effects 0% for no changes is not necessarily required change map can only be one source for changes, to be combined with other sources Discussion change map is one information source for changes, but all sources available should be used combination of different methods could be helpful differentiation between information on changes (to be interpreted) and data on changes (to be directly ingested into data base) update costs come up to 40% of data base generation costs in general update cycles are shortened (e.g. from 10 years to 3 years), thus speeding up the update process is a must, however • there are different priorities for different object groups • update cycles should be linked to life cycles of objects updating is done partially in 3-D, but change map could be superimposed Conclusions any information to speed up update process are welcome information should be simple (traffic light system), if complex, operator needs more time for interpretation matrix of objects and potential information sources for update should be set up tested methods tend to overestimate changes - tuning to national requirements is necessary
additional tests and/or adjustment to these requirements not possible within this project, but can be done based on individual contracts topic of CD is relevant for all participants, EU project within 7 th FWP is envisaged, potential coordination by Steinnocher Actions setting up matrix and sending it out for contributions Steinnocher, Nov 10 Returning matrix to Steinnocher all, Nov 20 Sending contribution for report – Evaluation of German test site Busch, Nov 15 Sending contribution for report – Evaluation of Danish test site Olsen, Nov 15 Sending contribution for report – Evaluation of Austrian test site Franzen, Nov 15 Sending guidelines for <strong>EuroSDR</strong> report Busch, Nov 15 Distributing draft report (for Austrian ministery) Steinnocher, Dec 15 <strong>EuroSDR</strong> report Steinnocher, Jan 31 Murray and Heipke will contribute to discussion with JRC regarding 7 th FWP Project building extraction Deseilligny gives a summary of the proposed building extraction project focuses on detailed change analysis of building based on optical and lidar data availability of lidar data very different in different countries, costs very high not yet generally available, project will have scientific research focus Action: IGN will look for interested project partners 177
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European Spatial Data Research Nove
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PRESIDENT 2006 - 2008: Stig Jönsso
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H. Kaartinen and J. Hyyppä: EVALUA
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4.3.1 Data and study area..........
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2 QUESTIONNAIRES...................
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Abstract The objective of the EuroS
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The analysis of the structural qual
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Figure 2-3: Hermanni test site. Fig
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Espoonlahti Hermanni Senaatti Photo
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2.2 Reference Data 2.2.1 Field Meas
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Used data Time use Laser Aerial Gro
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Step 3: Import to CCModeler Figure
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Figure 3-4: Sequence of manual phot
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Figure 3-8: Workflow of laser scann
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Figure 3-11: Parametric building mo
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Each group of connected pixels clas
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Figure 3-18: Topological points and
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Detailed Description (Letters refer
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assumption is made: the two longest
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Figure 3-25: A 3D building model wi
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ICC used the same methods as Nebel
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where p75th is the value at the 75
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CyberCity Stuttgart Hamburg IGN ICC
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CyberCity Hamburg Stuttgart IGN ICC
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Height Cyber- City Hamburg Stuttgar
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Height Cyber- City Stuttgart IGN IC
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Height Cyber- City Stuttgart IGN IC
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Height Cyber- City HamburgStuttgart
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Height Cyber- City HamburgStuttgart
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All targets Eaves Ridges Height IGN
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CyberCity achieved a good quality i
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Point density, shadowing of trees a
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Height accuracy IQR [m] 1.6 1.4 1.2
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All Cyber- Ham- ICC laser+ Nebel+ I
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All Cyber- HamStutt- ICC laser+ Neb
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In building length determination (F
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degrees, std 6.3 degrees). In Senaa
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5 Discussion and Conclusions It can
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References Alharthy A. and Bethe, J
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Fraser, C.S., Baltsavias, E. and Gr
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Khoshelham K., 2004. Building Extra
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Sequeira, V., Ng, K., Wolfart, E.,
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Index of Figures Figure 2-1: Senaat
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Index of Tables Table 2-1: Aerial i
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90 Senaatti by Delft. Wireframe mod
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92 Espoonlahti by IGN, with and wit
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94 Senaatti by IGN, with and withou
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96 Hermanni by Aalborg.
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98 CyberCity ICC laser+aerial ICC l
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100 IGN FOI outlines Nebel+Partner
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Difference Images, Whole Test Site,
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Difference Images, Whole Test Site,
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Difference Images, Modelled Buildin
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Difference Images, Modelled Buildin
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EuroSDR-Project Commission 2 “Ima
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2 Project highlights The project Ch
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116 Feature Characteristics Object
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New are those combinations that ind
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120 Figure 4-1: Orthophotomosaic fr
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4.1.2 Segmentation The first step o
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124 Class Features Vegetation Ratio
Page 128 and 129: 4.1.4 Change map As the results of
Page 130 and 131: Two types of changes were assigned
Page 132 and 133: 130 Figure 4-11: Evaluation of chan
Page 134 and 135: 132 Figure 4-13: Orthophotos of stu
Page 136 and 137: different villages were identified
Page 138 and 139: 136 Figure 4-16: Change maps of Swi
Page 140 and 141: spectral reflectance. Shadows (blac
Page 142 and 143: 140 Figure 4-19: Change map of Germ
Page 144 and 145: Figure 4-21: Diagnostics as given b
Page 146 and 147: 144 Automatic Accepted Rejected Hum
Page 148 and 149: 4.4.2 Segmentation, classification
Page 150 and 151: differentiated very well. The chang
Page 152 and 153: 150 Figure 4-31: Ultracam real-colo
Page 154 and 155: 152 Figure 4-35: Classification of
Page 156 and 157: 154 Figure 4-38: Subset of change m
Page 158 and 159: 5 Conclusions and Outlook In this p
Page 161: Annex 1 EuroSDR Change Detection Wo
Page 164 and 165: What is the impact of changing spat
Page 167: Annex 2 Paper presented at IGARSS05
Page 170 and 171: covering 2 x 2 km with reference da
Page 172 and 173: 170 Red roof Bright object 0 20 40
Page 175: Annex 3 EuroSDR CD Workshop Nicosia
Page 181: Annex 4 Comments on change map by B
Page 184 and 185: enzen mehr zu erwarten. Doch laut
Page 187 and 188: Abstract The EuroSDR “Sensor and
Page 189 and 190: 2 Test Sites and Test Data The test
Page 191 and 192: Figure 3: Data set Fjärdhundra, ag
Page 193 and 194: The map of Sweden is only available
Page 195 and 196: 3.2 Accounting for Different Acquis
Page 197 and 198: 4 Analysis 4.1 Basic Information In
Page 199 and 200: 4.2.2 Linear Objects Since it is no
Page 201 and 202: 5 Results of Phase I 5.1 Test Site
Page 203 and 204: 5.1.2 Qualitative Comparison In add
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Page 207 and 208: 5.3 Test Site Oberpfaffenhofen 5.3.
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Page 211 and 212: cies in analysis. The following fig
Page 213 and 214: 5.4.2 Qualitative Comparison The ra
Page 215 and 216: Acknowledgments We thank all partic
Page 217: Index of Tables Table 1: Contest Ph
Page 221 and 222: Abstract Roads are important object
Page 223 and 224: overview over the whole area. We ra
Page 225 and 226: m and above no longer plays an impo
Page 227 and 228: 3 Test Data and Evaluation Criteria
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and straight enough. • Markus Ger
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Name (best) Test area Completeness
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• ADS40_1 and 2: Results for both
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• Ikonos1_Sub1: This image shows
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Figure 7: Ikonos3_Sub1 - Bacher; co
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Finally, we want to note some impor
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load nor response time for anybody
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Zhang, C., 2004. Towards an Operati
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objects, and their cooperation with
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Belgium, provided by their NMCAs. H
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Possibly only parts of images will
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How many people are employed in you
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7. What is the average time differe
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- what is the degree of completenes
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Appendix 3: Questionnaire for Resea
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If others please specify: 2. What d
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Complex crossings (more than 4 road
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Combination of a) or b) with c) [0]
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If yes, using: DTM and / or [2] D
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Appendix 4: General Characteristics
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Most important features for practic
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IKONOS The images come from the SI
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Appendix 6: Documentation by Beumie
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Appendix 8: Documentation by Zhang
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LIST OF OEEPE/EuroSDR OFFICIAL PUBL
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25 Ducher, G.: Test on Orthophoto a
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