DocumentCode
2105833
Title
DEM generation from new VIR sensors: IKONOS, ASTER and Landsat-7
Author
Toutin, Thierry
Author_Institution
Canada Centre for Remote Sensing, Ottawa, Ont.
Volume
2
fYear
2001
fDate
2001
Firstpage
973
Abstract
DEM generation is a living R&D topic since new-launched satellite images can be used to generate stereoscopic images. Using a coplanarity equation model developed at CCRS and an automatic matching method developed at PCI, DEMs are generated with new VIR stereo data. Accuracy of 4.9 m with high-resolution IKONOS images, and 33 m and 101 m with medium-resolution ASTER and Landsat-7 ETM+ images respectively are obtained. The same matching accuracy of one-pixel is translated into worse results with Landsat due to a small B/H ratio of 0.15
Keywords
geophysical signal processing; image matching; stereo image processing; terrain mapping; topography (Earth); ASTER images; DEM generation; IKONOS images; Landsat-7 ETM+ images; automatic matching method; coplanarity equation model; stereoscopic images;
fLanguage
English
Publisher
ieee
Conference_Titel
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location
Sydney, NSW
Print_ISBN
0-7803-7031-7
Type
conf
DOI
10.1109/IGARSS.2001.976698
Filename
976698
Link To Document