Title :
Optimal edge detection in SLC images with correlated speckle
Author :
Fjortoft, Roger ; Lopes, Armand ; Bruniquel, Jerome ; Marthon, P.
Author_Institution :
CESBIO, CNRS, Toulouse, France
Abstract :
The authors develop the optimal criterion for edge detection in single look complex (SLC) synthetic aperture radar (SAR) images. By working on complex data rather than intensity images, the authors can take the speckle autocorrelation into account, obtain more accurate estimations of local mean reflectivities, and thus achieve better edge detection performance
Keywords :
edge detection; geophysical signal processing; geophysical techniques; radar imaging; remote sensing by radar; speckle; synthetic aperture radar; SAR image; SLC image; correlated speckle; geophysical measurement technique; land surface; local mean reflectivity; optimal criterion; optimal edge detection; radar imaging; radar remote sensing; single look complex; speckle autocorrelation; synthetic aperture radar; terrain mapping; Covariance matrix; Electronic mail; Image edge detection; Maximum likelihood estimation; Radar imaging; Reflectivity; Speckle; Synthetic aperture radar; Testing; Uninterruptible power systems;
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.1998.702899
