Title :
Evaluation of the Wishart test statistics for polarimetric SAR data
Author :
Skriver, Henning ; Nielsen, Allan Aasbjerg ; Conradsen, Knut
Author_Institution :
Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
A test statistic for equality of two covariance matrices following the complex Wishart distribution has previously been used in new algorithms for change detection, edge detection and segmentation in polarimetric SAR images. Previously, the results for change detection and edge detection have been quantitatively evaluated. This paper deals with the evaluation of segmentation. A segmentation performance measure originally developed for single-channel SAR images has been extended to polarimetric SAR images, and used to evaluate segmentation for a merge-using-moment algorithm for polarimetric SAR data.
Keywords :
covariance matrices; edge detection; geophysical signal processing; geophysical techniques; image segmentation; radar polarimetry; remote sensing by radar; statistical analysis; synthetic aperture radar; Wishart distribution; Wishart test statistics; change detection; covariance matrices; edge detection; image segmentation; merge-using-moment algorithm; polarimetric SAR data; quantitative evaluation; single-channel SAR images; Change detection algorithms; Covariance matrix; Image edge detection; Image segmentation; Informatics; Merging; Performance evaluation; Probability; Statistical analysis; Testing;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1293888
