| 非下采样Contourlet域的ICA法SAR图像相干斑抑制 |
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| 引用本文： | 贺峥嵘,刘智,王番,陈永昌.非下采样Contourlet域的ICA法SAR图像相干斑抑制[J].测绘工程,2011,20(3):28-32. |
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| 作者姓名： | 贺峥嵘 刘智 王番 陈永昌 |
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| 作者单位： | 信息工程大学测绘学院;91515部队;海军出版社; |
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| 摘 要： | 相干斑是SAR图像固有信息,也是SAR图像处理研究的重要方面之一.将非下采样Contourlet变换和统计信号处理中的独立分量分析相结合进行斑点抑制.对SAR图像进行非下采样金字塔和非下采样方向性滤波器组分解,在分解得到的非下采样Contourlet变换域利用扩展Infomax算法分离SAR图像斑点噪声.实验结果表明,...
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| 关 键 词： | 非下采样 Contourlet变换 独立分量分析 合成孔径雷达 扩展Infomax |
Speckle reduction of SAR image based on independent component analysis in nonsubsampled Contourlet domain |
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| HE Zheng-rong,LIU Zhi,WANG Fan,CHEN Yong-chang.Speckle reduction of SAR image based on independent component analysis in nonsubsampled Contourlet domain[J].Engineering of Surveying and Mapping,2011,20(3):28-32. |
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| Authors: | HE Zheng-rong LIU Zhi WANG Fan CHEN Yong-chang |
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| Institution: | HE Zheng-rong1,2,LIU Zhi1,WANG Fan1,CHEN Yong-chang3 (1.Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China,2.91515 Troops,Sanya 572016,3.China Navigation Publications Press,Tianjin 300450,China) |
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| Abstract: | Speckle noise was generated by the coherent processing of synthetic aperture radar(SAR) signals.Speckle denoising remained the major issues in SAR image processing.In this paper we combined the nonsubsampled contourlet transform(NSCT) and the independent component analysis used in statistical signal processing to filter SAR images.Firstly,we decomposed SAR image by the nonsubsampled pyramid(NSP) and the nonsubsampled directional filter bank(NSDFB).And then implemented the extended Infomax algorithm in this ... |
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| Keywords: | nonsubsampled Contourlet transform independent component analysis SAR extended Infomax |
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