High Resolution 1:10,000 scale Mapping Strategy of Multi ... - NDMA

scanners, large format digital line scanners, large and medium format digital frame
cameras, and traditional large format film cameras, Current state-of–the-art direct
georeferencing systems are available with leading manufacturers. They use carrier
phase differential GNSS measurements integrated with an Inertial Measurement Unit
(IMU). (For more details please refer to Annex. XI)
The key component of the DS system is the GNSS-Aided Inertial Navigation
software. This software runs in real-time on the processing Computer System and in
post-processing software suite. It performs the integration of the inertial data from the
IMU with the data from the GNSS receiver.
COMPARISON BETWEEN SATELLITE IMAGING AND AERIAL MAPPING
GENERAL DIFFERENCES
With the higher resolution and unrestricted access to images taken by
satellites, a competition between aerial images and space data is existing, starting
for a map scale 1: 5,000. However, high resolution stereo satellites are still under
evaluation for detailed mapping.
COMPARISON BETWEEN LIDAR, HIGH RESOLUTION STEREO SATELLITE IMAGE
AND AERIAL PHOTO
Features LiDAR
Contour Interval
Contour
Generation
High Resolution
satellite stereo
Aerial
Photogrammetry/
Photo Scale
0.5 m � � � (1:5,000)
1 m � � � (1:10,000)
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