Title :
Automated acquisition of ground control using SAR layover and shadows
Author :
Gelautz, M. ; Mitteregger, E. ; Leberl, F.
Author_Institution :
Inst. for Comput. Vision & Graphics, Tech. Univ. Graz, Austria
Abstract :
The authors present an algorithm which uses SAR layover and shadows for the automated acquisition of ground control. The control points are then utilized to refine the SAR sensor parameters. Tests are carried out on ERS-1 and X-SAR images of the Austrian Alps. The accuracy of the layover/shadow matching algorithm is assessed by comparison with the results obtained by conventional cross-correlation of real-simulated gray value images
Keywords :
geophysical signal processing; geophysical techniques; image registration; radar imaging; remote sensing by radar; spaceborne radar; synthetic aperture radar; Austrian Alps; ERS-1; SAR; SAR layover; SAR sensor parameters; X-SAR; algorithm; automated acquisition; control points; geophysical measurement technique; ground control; image registration; land surface; radar imaging; radar remote sensing; shadow matching; shadow method; spaceborne radar; synthetic aperture radar; terrain mapping; Automatic control; Backscatter; Computer graphics; Computer vision; Geometry; Humans; Image sensors; Pixel; Solid modeling; Testing;
Conference_Titel :
Geoscience and Remote Sensing, 1997. IGARSS '97. Remote Sensing - A Scientific Vision for Sustainable Development., 1997 IEEE International
Print_ISBN :
0-7803-3836-7
DOI :
10.1109/IGARSS.1997.615917
