Title :
Smoothing of SAR image speckle noise by multiplicative point estimation filters
Author_Institution :
Fac. of Eng. & Appl. Sci., Memorial Univ. of Newfoundland, St. John´´s, Nfld., Canada
Abstract :
This paper investigates the smoothing of speckle noise in synthetic aperture radar (SAR) images using the multiplicative point estimator, a locally adaptive form of the homomorphic filter. The filter adaptation is based on an assumed probability model for speckle noise. Speckle smoothing results for mixed terrain airborne SAR images are presented
Keywords :
adaptive estimation; adaptive filters; airborne radar; noise; probability; radar imaging; smoothing methods; speckle; synthetic aperture radar; SAR image speckle noise; filter adaptation; homomorphic filter; locally adaptive form; mixed terrain airborne SAR images; multiplicative point estimation filters; probability model; speckle smoothing; synthetic aperture radar; Adaptive filters; Image resolution; Magnetic noise; Noise level; Noise measurement; Nonlinear distortion; Reflectivity; Smoothing methods; Speckle; Synthetic aperture radar;
Conference_Titel :
Image Processing, 1996. Proceedings., International Conference on
Conference_Location :
Lausanne
Print_ISBN :
0-7803-3259-8
DOI :
10.1109/ICIP.1996.560940
