Conference paper
Polarimetric Edge Detector Based on the Complex Wishart Distribution
Department of Electrical Engineering, Technical University of Denmark1
Department of Electromagnetic Systems, 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 new edge detector for polarimetric SAR data has been developed. The edge detector is based on 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. The new polarimetric edge detector provides a constant false alarm rate and it utilizes the full polarimetric information.
The edge detector has been applied to polarimetric SAR data from the Danish dual-frequency, airborne polarimetric SAR, EMISAR. The results show clearly an improved edge detection performance for the full polarimetric detector compared to single channel approaches.
| Language: | English |
|---|---|
| Year: | 2001 |
| Pages: | 3149,3150,3151 |
| Proceedings: | 2001 Geoscience and Remote Sensing Symposium |
| ISBN: | 0780370317 and 9780780370319 |
| Types: | Conference paper |
| DOI: | 10.1109/IGARSS.2001.978286 |
| ORCIDs: | Skriver, Henning , Nielsen, Allan Aasbjerg and Conradsen, Knut |
Backscatter Covariance matrix Danish dual-frequency airborne polarimetric SAR Detectors EMISAR Gamma ray detection Image edge detection Probability Scattering Statistical analysis Statistical distributions Testing airborne radar associated asymptotic probability complex Wishart distribution complex covariance matrices edge detection edge detection performance false alarm rate full polarimetric detector polarimetric SAR data polarimetric edge detector polarimetric information radar polarimetry synthetic aperture radar test statistic
