%0 Journal Article
%T Speckle reduction for multi-polarimetric SAR image with the similarity of the scattering<br>采用散射特征相似性的极化SAR图像相干斑抑制
%A YANG Xuezhi
%A ZUO Meixi
%A LANG Wenhui
%A ZHANG Xi
%A MENG Junmin
%A <br>杨学志
%A 左美霞
%A 郎文辉
%A 张晰
%A 孟俊敏
%J 遥感学报
%D 2012
%I 
%X The speckle in polarimetric Synthetic Aperture Radar (SAR) image has seriously affected the effectiveness in extracting information. For this reason, a novel method based on the similarity of the scattering for speckle reduction is proposed. This method combines the similarity of the scattering properties and the redundant information in SAR image, and applies the Wishart distribution of SAR data to implement the measurement of the similarity. It then averages the covariance matrices with the weights according to the similarity between the matrices, leading to efficient reduction of the speckle in SAR image. The method processes each element of the covariance matrices, given its advantage in preserving polarimetric properties. Compared with the existing methods, including the Polarimetric Whitening Filter (PWF) and the polarimetric Lee filter, the implementation result indicates that the proposed algorithm is effective in improving the performance of despeckling and details preservation.
%K SAR
%K multi-polarimetric
%K speckle reduction
%K scattering character
%K similarity<br>合成孔径雷达
%K 多极化
%K 相干斑抑制
%K 散射特性
%K 相似性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=A41A70F4AB56AB1B&jid=F926358B31AC94511E4382C083F7683C&aid=68D8E3472B8B750C114AF0B345639CCC&yid=99E9153A83D4CB11&vid=7801E6FC5AE9020C&iid=CA4FD0336C81A37A&sid=03F1579EF92A5A32&eid=EDA22B444205D04A&journal_id=1007-4619&journal_name=遥感学报&referenced_num=0&reference_num=16