Title :
Glacier surface velocity measure based on polarimetric tracking
Author :
Erten, Esra ; Chesnokova, Olga ; Hajnsek, Irena ; Reigber, Andreas ; Ferro-Famil, Laurent
Author_Institution :
Dept. of Geomatic Eng., Istanbul Tech. Univ. (ITU), Istanbul, Turkey
Abstract :
The contribution of Polarimetric Synthetic Aperture Radar (PolSAR) images compared with the single-channel SAR in terms of temporal scene characterization has been found and described to add valuable information in the literature. Recently, a new PolSAR tracking algorithm has been proposed for glacier surface velocity monitoring. The proposed polarimetric tracking method applies Mutual Information (MI) to measure the statistical dependence between temporal polarimetric images, which is assumed to be maximum if the images are geometrically aligned. In this paper, its implementation of interest will be investigated.
Keywords :
geophysical image processing; geophysical techniques; glaciology; radar imaging; radar polarimetry; remote sensing by radar; synthetic aperture radar; PolSAR tracking algorithm; glacier surface velocity monitoring; mutual information; polarimetric synthetic aperture radar images; polarimetric tracking method; single-channel SAR; statistical dependence; temporal polarimetric images; temporal scene characterization; Covariance matrix; L-band; Monitoring; Radar tracking; Synthetic aperture radar; Vectors; Velocity measurement; Glacier monitoring; Mutual Information; Polarimetry; Synthetic Aperture Radar (SAR); cryosphere;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6350763