DocumentCode :
3253133
Title :
Coherent Change Detection Statistics for Multiple Polarization SAR Images
Author :
Sharma, Rajesh
Author_Institution :
Northrop Grumman Corp., Baltimore
fYear :
2007
fDate :
4-7 Nov. 2007
Firstpage :
2209
Lastpage :
2212
Abstract :
Given a pair of multiple polarization synthetic aperture radar (SAR) images collected at different times, the basic change detection problem is to determine pixels in the image that have changed during the time between images. A change detection statistic is computed for each pixel in the image to indicate whether a change has occurred. In this paper, we present a generalization of the coherent change detection (CD) statistic used for scalar valued SAR data to multiple polarization SAR data. Our generalized CD statistic is based on a test for statistical independence. We do not make any restrictive assumption regarding the underlying SAR data. A theoretical analysis of change detection performance is presented and comparisons are made with previous work.
Keywords :
polarisation; radar detection; radar imaging; statistical analysis; synthetic aperture radar; coherent change detection statistics; multiple polarization SAR images; synthetic aperture radar; Array signal processing; Geometry; Layout; Performance analysis; Pixel; Polarization; Radar detection; Statistics; Synthetic aperture radar; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signals, Systems and Computers, 2007. ACSSC 2007. Conference Record of the Forty-First Asilomar Conference on
Conference_Location :
Pacific Grove, CA
ISSN :
1058-6393
Print_ISBN :
978-1-4244-2109-1
Electronic_ISBN :
1058-6393
Type :
conf
DOI :
10.1109/ACSSC.2007.4487633
Filename :
4487633
Link To Document :
بازگشت