Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Beijing University of Aeronautics and Astronautics》 2006-03
Add to Favorite Get Latest Update

Combined simulated annealing and soft-threshold wavelet de-noising of SAR image

Zhou Yinqing Zhang Lei Xu Huaping(School of Electronics and Information Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100083,China)  
A technique of speckle reduction in synthetic aperture radar(SAR) images was presented.Based on the character of wavelet transforms that the approximate coefficients of the transformed image still obey Gibbs distribution,the simulated annealing to the wavelet domain was introduced.The traditional logarithmic transformation was modified to adapt the power SAR images,which can maintain the mean of the SAR image better and achieve a better equivalentlook,then based on multi-resolution analysis theory and wavelet transform theory,an optimal mother wavelet was found to match the specific images.The algorithm of simulated annealing was applied to the coefficient in the scaling subspace and the algorithm of soft-thresholding was applied to the coefficient in the wavelet subspace distinctively.The result of experiments show that the new technique achieves a better smooth result when compared to the traditional wavelet denoising,at the same time it saves much time when compared to the simulated annealing,and it improves the structure and edge preservation with satisfying denoising results.
【CateGory Index】: TN957.52
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【Citations】
Chinese Journal Full-text Database 2 Hits
1 LI Chun sheng,YAN Ying,CHEN Jie,HUANG Yan,ZHOU Yin qing(Dept.of Electronic Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100083,China);Speckle Reduction for High Resolution One Look Spaceborne SAR Images[J];ACTA ELECTRONICA SINICA;2000-03
2 YAN Ying,ZHOU Yin qing,CHEN Jie (Dept of E E,Beijing University of Aeronautics and Astronautics,Beijing 100083,China);Speckle Removal for SAR Single-look Images by Simulated Annealing[J];Acta Electronica Sinica;2003-12
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 YAN Ying ZHOU Yin qing LI Chun sheng CHEN Jie (Beijing University of Aeronautics and Astronautics, Dept. of Electronic Engineering);A System on Speckle Reduction and Quality Evaluation of Spaceborne SAR Images in IDL[J];Journal of Beijing University of Aeronautics and Astronautics;2001-05
2 Yan Ying Zhou Yinqing(Dept. of Electronic Engineering, Beijing University of Aeronautics and Astronautics);Speckle Filtering Based on Segmentation for Monolook SAR Images[J];Journal of Beijing University of Aeronautics and Astronautics;2003-02
3 ZENG Hai-bin~(1,2),ZENG Tao~1,MENG Xiao-dong~3(1.Radar Research Lab,Beijing Institute of technology,Beijing 100081,China;2.Beijing Institute of Tracking and Telecommunication Technique,Beijing 100094,China;3.The 5th Institute of Air Force,Beijing 100085,China);An Improved Spaceborne Spotlight SAR Sub-aperture ECS Algorithm[J];Telecommunication Engineering;2006-03
4 Hong Shunying+{1)},Shen Xuhui+{1)},Chen Zhengwei+{1)} and Chen Lizhe+{2)} 1)Intitute of Earthquake Prediction,CEA,Beijing100036 2)University of Houston,USA;NOISE REMOVING METHOD BASED ON WAVELET TRANSFORM FOR SAR IMAGE[J];Crustal Deformation and Earthquake;2005-02
5 YAN Ying,ZHOU Yin qing,CHEN Jie (Dept of E E,Beijing University of Aeronautics and Astronautics,Beijing 100083,China);Speckle Removal for SAR Single-look Images by Simulated Annealing[J];Acta Electronica Sinica;2003-12
6 SUN Bing,ZHOU Yin-qing,CHEN Jie,LI Chun-sheng(School of Electronic and Information Engineering of BUAA,Beijing 100083,China);CA-ECS Algorithm for Squinted SAR Imaging Based on Constant Acceleration Model[J];Acta Electronica Sinica;2006-09
7 WANG Liang~1,LIAN You-ping~2,HUANG Xiao-tao~1,ZHOU Zhi-min~1(1.Dept.of Electronic Technology,NUDT,Changsha,Hunan 410073,China;2.Dept.of Logistics Information Engineering,LEU,Chongqing 400016,China);Comparison of Large-Squint and Large-Beam width SAR Imaging[J];Acta Electronica Sinica;2006-09
8 Chen Qi①② Yang Ru-liang① ① (Institute of Electronics, Chinese Academy of Sciences, Beijing 100080, China) ② (Graduate University of Chinese Academy of Sciences, Beijing 100039, China);Research of Chirp Scaling Imaging Algorithm for Air-borne Forward-looking SAR[J];Journal of Electronics & Information Technology;2008-01
9 CAO Ji~1,WU Man-qing~2,WANG Liang-jun~1 (1.School of Computer and Information, Hefei University of Technology, Hefei 230009, China; 2.East-China Research Institute of Electrical Engineering, Hefei 230031, China);Chirp Scaling Algorithm and its simulation[J];Journal of Hefei University of Technology(Natural Science);2004-02
10 WANG Xiao~1,XIA Chuan-hao~2 (1. School of Computer and Information, Hefei University of Technology, Hefei 230009, China; 2. The 38th Research Institute of Electronics, China Electronics Technology Group Corporation, Hefei 230031, China);An improved speckle reduction algorithm of SAR images[J];Journal of Hefei University of Technology(Natural Science);2005-05
【Co-references】
Chinese Journal Full-text Database 1 Hits
1 Hou Yi-min Guo Lei (Department of Automation, Northwestern Polytechnical University, Xi’an 710072, China);A Novel SAR Image Segmentation Method Based on Markov Random Field[J];Journal of Electronics & Information Technology;2007-05
【Secondary Citations】
Chinese Journal Full-text Database 2 Hits
1 LI Chun sheng,YAN Ying,CHEN Jie,HUANG Yan,ZHOU Yin qing(Dept.of Electronic Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100083,China);Speckle Reduction for High Resolution One Look Spaceborne SAR Images[J];ACTA ELECTRONICA SINICA;2000-03
2 Li Chunsheng;Huang Yan; Wang Xuan;Zhou Yinqing (Department of electronic engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083);A Spaceborne SAR Imaging Processing Algorithm Using Chirp Scaling[J];ACTA ELECTRONICA SINICA;1996-06
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved