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《Science of Surveying and Mapping》 2011-03
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Fusion and speckle reduction of multi-polarization SAR images based on nonsubsampled Contourlet transform

SUNXiao-xia①②,ZHANG Ji-xian②,YAN Qin②(① China University of Mining and Technology,Jiangsu 221116,China;② Chinese Academy of Surveying and Mapping,Beijing 100830,China)  
Nonsubsampled Contourlet Transform(NSCT) is a newly improved multiresolution geometry analysis technique based on Contourlet Transform.NSCT can represent images more effectively because of its flexible multi-resolution,multi-direction and shift invariance,and has been approved to be very suitable for noisy images,such as SAR images.A method of fusing and reducing the speckles of multi-polarization SAR images based on NSCT was proposed in the paper.The images were firstly decomposed by NSCT,and then different fusion rules of decomposed coefficients were chosen with the consideration of denoising and information enhancing.Finally,the fused NSCT coefficients were reconstructed to obtain fusion result.In this paper,HH and VV co-polarization images were fused using the proposed method,and the entropy,correlation coefficient and Equivalent Number of Looks(ENL) were calculated to evaluate the results.Experiments showed that the proposed algorithm could obtain a good fused image with the improved spatial information,at the same time the speckle noises could be reduced to some extent.
【Fund】: 中国测绘科学研究院基本科研业务费资助(7771032)
【CateGory Index】: TN957.52
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2 CAO Yun-gang①,YAN Li-juan②,ZHENG Ze-zhong①(①Department of Survey Engineering,School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China;②National Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology,Chengdu 610059,China);A new SAR image filter method based on edge detection[J];Science of Surveying and Mapping;2010-03
【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 WANG Zhiyong~(①②), ZHANG Jingxian~②, HUANG Guoman~②(①Shandong University of Science and Technology,Shangdong, Taian 271019;②Chinese Academy of Surveying and Mapping,Beijing 100039,China);The research of speckle reduction for SAR images[J];Science of Surveying and Mapping;2004-06
2 WANYou-chuan,CHENTao,PANBin;An Edge Detection Algorithmfor SAR Images[J];Bulletin of Surveying and Mapping;2006-05
3 WANG Lu-cai~(1,2), WANG Yao-nan~1,MAO Lu-ping~1(1. Department of Electrical and Informational Engineering, Hunan University, Changsha 410082,China; 2. Hunan Normal University,Changsha 410081,China);An Algorithm of Interferometric Phase Filter of In SAR Based on Wavelet Analysis and Median Filter Algorithm[J];Acta Geodaetica Et Cartographic Sinica;2005-02
4 HUANG Shi-qi,LIU Dai-zhi (the Second Artillery Engineering Institute,Xi'an 710025,China);Research on Method and Application of Speckle Noise Reduction of SAR Image[J];Acta Geodaetica et Cartographica Sinica;2006-03
5 HUANG Shi-Qi,LIU Dai-Zhi,CHEN LiangSec. 602, the Second Artillery Institute of Engineering, Xi’an 710025, China;A study of the damage detection method for smooth earth surface[J];Chinese Journal of Geophysics;2007-04
6 FU Wen xian,LI Shao hong,HONG Wen (School of EIE,Beijing Univ.of Aeronautics and Astronautics,Beijing 100083,China);Hitting Effect Evaluation Based on High-Resolution SAR Images[J];Acta Electronica Sinica;2003-09
7 Huang Qian Zhang Bing-chen Wang Yan-fei (Institute of Electronics, Chinese Academy of Sciences, Beijing 100080, China);An Anisotropic Diffusion Equation for SAR Speckle Reduction[J];Journal of Electronics & Information Technology;2006-01
8 Li Su-dan Li Guang-xia (College of Communication Engineering,Institute of Technology of Liberation Army,Nanjing 210007, China);A SAR Image Filter Method Based on Structured Neibourhood Model with Multi-scale Edges Detection[J];Journal of Electronics & Information Technology;2006-08
9 YANG Wei-ming, CHEN Jian-xin ( Laboratory of Optoelectronics Technology, Beijing University of Technology, Beijing 100022 China );Comparison of local statistic filtering on speckle of remote sensing image[J];Chinese Journal of Quantum Electronics;2005-02
10 ZHANG Hong 1 SHU Ning 1 LIU Gang 2 (1 School of Remote Sensing and Information Engineering,Wuhan University, 129 Luoyu Road, Wuhan 430079,China)(2 College of Horticulture and Forestry, Huazhong Agriculture University, 1 Shizishan Street, Wuhan 430070,China);Application of Multitemporal Composition and Classification to Land Use Change Detection[J];Editorial Board of Geomatics and Information Science of Wuhan University;2005-02
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