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A Nonlocal TV-Based Variational Method for PolSAR Data Speckle Reduction

文献类型：期刊论文

作者Nie, Xiangli1; Qiao, Hong1,2; Zhang, Bo3; Huang, Xiayuan3
刊名IEEE TRANSACTIONS ON IMAGE PROCESSING
出版日期2016-06-01
卷号25期号:6页码:2620-2634
关键词Polarimetric synthetic aperture radar (PolSAR) speckle reduction nonlocal total variation (NLTV) complex Wishart distribution conjugate function variational model
ISSN号1057-7149
DOI10.1109/TIP.2016.2552402
英文摘要In this paper, we propose a nonlocal total variation (NLTV)-based variational model for polarimetric synthetic aperture radar (PolSAR) data speckle reduction. This model, named WisNLTV, is obtained based on the Wishart fidelity term and the NLTV regularization defined for the complex-valued fourth-order tensor data. Since the proposed model is non-convex, an equivalent bi-convex model is obtained using the property of conjugate functions. Then, an efficient iteration algorithm is developed to solve the equivalent bi-convex model, based on the alternating minimization and the forward-backward operator splitting technique. The proposed iteration algorithm is proved to be convergent under certain conditions theoretically and numerically. Experimental results on both synthetic and real PolSAR data demonstrate that the proposed method can effectively reduce speckle noise and, meanwhile, better preserve the details and the repetitive structures such as textures and edges, and the polarimetric scattering characteristics, compared with the other methods.
资助项目National Natural Science Foundation of China[61379093] ; National Natural Science Foundation of China[11131006] ; Strategic Priority Research Program, Chinese Academy of Sciences[XDB02080003] ; BMST[D16110400140000] ; BMST[D161100001416001] ; Early Career Development Award of SKLMCCS
WOS研究方向Computer Science ; Engineering
语种英语
WOS记录号WOS:000375121600001
出版者IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
源URL[http://ir.amss.ac.cn/handle/2S8OKBNM/22555]  
专题应用数学研究所
通讯作者Zhang, Bo
作者单位1.Chinese Acad Sci, Inst Automat, State Key Lab Management & Control Complex Syst, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Brain Sci & Intelligence Technol, Shanghai 200031, Peoples R China
3.Chinese Acad Sci, Inst Appl Math, Acad Math & Syst Sci, State Key Lab Sci & Engn Comp, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Nie, Xiangli,Qiao, Hong,Zhang, Bo,et al. A Nonlocal TV-Based Variational Method for PolSAR Data Speckle Reduction[J]. IEEE TRANSACTIONS ON IMAGE PROCESSING,2016,25(6):2620-2634.
APA Nie, Xiangli,Qiao, Hong,Zhang, Bo,&Huang, Xiayuan.(2016).A Nonlocal TV-Based Variational Method for PolSAR Data Speckle Reduction.IEEE TRANSACTIONS ON IMAGE PROCESSING,25(6),2620-2634.
MLA Nie, Xiangli,et al."A Nonlocal TV-Based Variational Method for PolSAR Data Speckle Reduction".IEEE TRANSACTIONS ON IMAGE PROCESSING 25.6(2016):2620-2634.

入库方式： OAI收割

来源：数学与系统科学研究院

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