Conference paper
Polarimetric Segmentation Using Wishart Test Statistic
Electromagnetic Systems, Department of Electrical Engineering, Technical University of Denmark1
Department of Electrical Engineering, Technical University of Denmark2
Image Analysis and Computer Graphics, Department of Informatics and Mathematical Modeling, Technical University of Denmark3
Department of Informatics and Mathematical Modeling, Technical University of Denmark4
A newly developed test statistic for equality of two complex covariance matrices following the complex Wishart distribution and an associated asymptotic probability for the test statistic has been used in a segmentation algorithm. The segmentation algorithm is based on the MUM (merge using moments) approach, which is a merging algorithm for single channel SAR images.
The polarimetric version described in this paper uses the above-mentioned test statistic for merging. The segmentation algorithm has been applied to polarimetric SAR data from the Danish dual-frequency, airborne polarimetric SAR, EMISAR. The results show clearly an improved segmentation performance for the full polarimetric algorithm compared to single channel approaches.
Language: | English |
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Publisher: | IEEE |
Year: | 2002 |
Pages: | 1011,1012,1013 |
Proceedings: | International Geoscience and Remote Sensing Symposium (IGARSS) |
ISBN: | 078037536X , 078037536x and 9780780375369 |
Types: | Conference paper |
DOI: | 10.1109/IGARSS.2002.1025759 |
ORCIDs: | Skriver, Henning , Nielsen, Allan Aasbjerg and Conradsen, Knut |
Classification algorithms Covariance matrix Danish dual-frequency airborne polarimetric SAR EMISAR Image edge detection Image segmentation MUM Merging Partitioning algorithms Scattering Statistical analysis Statistical distributions Testing Wishart test statistic airborne radar asymptotic probability complex covariance matrices covariance matrices image segmentation merge using moments merging algorithm method of moments polarimetric segmentation radar imaging radar polarimetry single channel SAR images statistical analysis synthetic aperture radar