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《Electronics Optics & Control》 2010-04
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Speckle Noise Reduction of TerraSAR-X Image Based on Modified GIW Algorithm

YAN Weidong1,2,NI Weiping2,BIAN Hui2,LU Ying2,ZHAO Yigong1(1.School of Electronic Engineering,Xidian University,Xi'an 710071,China;2.Northwest Institute of Nuclear Technology,Xi'an 710024,China)  
As for the reduction of speckle noise in TerraSAR-X image,several classical algorithms are investigated based on the mathematical model analysis of the noise.A modified Gradient Inverse Weighted(GIW) filter algorithm is presented,which used the idea of the Kuan algorithm.In the algorithm,the gray gradient reciprocal of the neighborhood pixels and the center pixel,and the local statistics are used to construct the weighted filter mask,followed by the convolution operation to restrain the speckle noise.The experiment results with the TerraSAR-X images indicates that the algorithm,which is simple in principle and easy to realize,can suppress the speckle noise effectively while keeping fine edge details,thus it is suitable for the follow-up processes as edge extraction and target detection.
【CateGory Index】: TP391.41
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【Citations】
Chinese Journal Full-text Database 2 Hits
1 LIAO Mingsheng TIAN Xin ZHAO Qing(State Key Laboratory for Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,129 Luoyu Road,Wuhan 430079,China);MISSIONS AND APPLICATIONS OF TERRASAR-X/TANDEM-X[J];Journal of Geomatics;2007-02
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【Co-citations】
Chinese Journal Full-text Database 3 Hits
1 YANG Qiang1 CHEN Zhou2(1.Xi'an Communications Institute,Xi'an Shaanxi 710106 China;2.Fu Zhou General Hospital,Fu Jian Fu Zhou,350025);Algorithm for TerraSAR-X Image Speckle Noise Reduction Based on Fuzzy Filter Kernel[J];Science & Technology Information;2009-17
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