A Nonlocal TV-Based Variational Method for PolSAR Data Speckle Reduction
Nie, Xiangli1; Qiao, Hong1,2; Zhang, Bo3; Huang, Xiayuan3; Bo Zhang
2016-06-01
发表期刊IEEE TRANSACTIONS ON IMAGE PROCESSING
卷号25期号:6页码:2620-2634
文章类型Article
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.
关键词Polarimetric Synthetic Aperture Radar (Polsar) Speckle Reduction Nonlocal Total Variation (Nltv) Complex Wishart Distribution Conjugate Function Variational Model
WOS标题词Science & Technology ; Technology
DOI10.1109/TIP.2016.2552402
关键词[WOS]POLARIMETRIC SAR DATA ; LOJASIEWICZ INEQUALITY ; MULTIPLICATIVE NOISE ; WISHART DISTRIBUTION ; MODEL ; ALGORITHMS ; CLASSIFICATION ; DECOMPOSITION ; FRAMEWORK ; IMAGERY
收录类别SCI
语种英语
项目资助者National Natural Science Foundation of China(61379093 ; Strategic Priority Research Program, Chinese Academy of Sciences(XDB02080003) ; BMST(D16110400140000 ; Early Career Development Award of SKLMCCS ; 11131006) ; D161100001416001)
WOS研究方向Computer Science ; Engineering
WOS类目Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
WOS记录号WOS:000375121600001
引用统计
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/12207
专题复杂系统管理与控制国家重点实验室_机器人理论与应用
通讯作者Bo Zhang
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
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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,&Bo Zhang.(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.
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