Maximum a posteriori-based texture estimation by despeckling of SAR clutter amplitude data.

Dheeren Ku Mahapatra, Soumya Shubhra Ray,Lakshi Prosad Roy

IET Image Processing（2017）

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摘要

Coherent processing of synthetic aperture radar (SAR) data makes SAR images highly susceptible to signal-dependent granular noise known as speckle. For accurate texture estimation, the maximum a posteriori (MAP) approach is found to be efficient among multitude of despeckling approaches reported in the available literature. However, the formulations of MAP estimator for texture are available in `i...

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关键词

expectation-maximisation algorithm,image texture,maximum likelihood estimation,radar imaging,radar signal processing,synthetic aperture radar

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