Journal of University of Chinese Academy of Sciences >
A new spatial speckle reduction method for polarimetric SAR data
Received date: 2011-12-29
Revised date: 2012-03-13
Online published: 2013-01-15
In order to effectively reduce the speckle of PolSAR data,a new algorithm is proposed combing the improved sigma filter with unsupervised Wishart classification based on Freeman-Durden decomposition. Pixels within the sigma range and also in the same scattering category are selected and used to estimate the central pixel. The experiment results show that the proposed algorithm excels in both the suppression of the speckle and the preservation of the edges and texture details and that it can protect the scattering characteristics of targets.
ZHANG Jing-Yi , LEI Bin , LIU Tuan-Jie . A new spatial speckle reduction method for polarimetric SAR data[J]. Journal of University of Chinese Academy of Sciences, 2013 , 30(1) : 60 -67 . DOI: 10.7523/j.issn.1002-1175.2013.01.010
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