Title :
Evaluating RADARSAT stereoscopic pairs for DEM generation
Author_Institution :
Canada Centre for Remote Sensing, Ottawa, Ont., Canada
Abstract :
DEM generated from RADARSAT images are evaluated. Results show that the only parameter that has a significant impact on the precision is the type of the relief: 20-25 m and 35-40 m with 90% of confidence for low and moderate relief respectively, whatever the stereo-pair. It also shows that the base-to-height ratio is not a good indicator for predicting the accuracy with SAR stereo-images
Keywords :
geophysical signal processing; radar altimetry; radar imaging; remote sensing by radar; stereo image processing; topography (Earth); DEM generation; RADARSAT stereoscopic pairs; SAR stereo-images; base-to-height ratio; precision; relief; Accuracy; Filters; Geometry; Image generation; Production; Radar; Radiometry; Remote sensing; Speckle; Surfaces;
Conference_Titel :
Geoscience and Remote Sensing Symposium Proceedings, 1998. IGARSS '98. 1998 IEEE International
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4403-0
DOI :
10.1109/IGARSS.1998.699664
