Segmentation-Based MAP Despeckling of SAR Images in the Undecimated Wavelet Domain

@article{Bianchi2008SegmentationBasedMD,
  title={Segmentation-Based MAP Despeckling of SAR Images in the Undecimated Wavelet Domain},
  author={Tiziano Bianchi and Fabrizio Argenti and Luciano Alparone},
  journal={IEEE Transactions on Geoscience and Remote Sensing},
  year={2008},
  volume={46},
  pages={2728-2742}
}
In this paper, a novel despeckling algorithm based on undecimated wavelet decomposition and maximum a posteriori estimation is proposed. Such a method represents an improvement with respect to the filter presented by the authors, and it is based on the same conjecture that the probability density functions (pdfs) of the wavelet coefficients follow a generalized Gaussian (GG) distribution. However, the approach introduced here presents two major novelties: 1) theoretically exact expressions for… CONTINUE READING
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