Title :
New distribution-entropy maximum a posteriori speckle filters for detected, complex and polarimetric SAR data
Author :
Nezry, Edmond ; Yakam-Simen, Francis
Author_Institution :
PRIVATEERS N.V., Philipsburg, Netherlands
Abstract :
Five new Distribution-Entropy Maximum A Posteriori (DE MAP) speckle filters are established for the following cases: single detected, multilook multi-channel detected, single look complex SAR images, separate complex looks, and fully polarimetric SAR data. As shown, these new filters are particularly efficient to reduce speckle noise, while preserving textural properties and spatial resolution, especially in strongly textured SAR images
Keywords :
geophysical signal processing; geophysical techniques; radar imaging; radar polarimetry; remote sensing by radar; speckle; synthetic aperture radar; terrain mapping; SAR; distribution-entropy maximum a posteriori speckle filter; geophysical measurement technique; image texture; land surface; multilook multi-channel detected; radar polarimetry; radar remote sensing; separate complex looks; single detected; single look complex SAR image; spatial resolution; speckle filter; speckle noise reduction; strongly textured SAR images; synthetic aperture radar; terrain mapping; Equations; Filtering; Filters; Gamma ray detection; Gamma ray detectors; Radar detection; Radar imaging; Reflectivity; Speckle; Synthetic aperture radar;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International
Conference_Location :
Hamburg
Print_ISBN :
0-7803-5207-6
DOI :
10.1109/IGARSS.1999.772101
