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

doi:10.1109/TIP.2016.2552402

CSpace > 应用数学研究所

	A Nonlocal TV-Based Variational Method for PolSAR Data Speckle Reduction
	Nie, Xiangli 1; Qiao, Hong 1,2; Zhang, Bo3 ; Huang, Xiayuan 3
	2016-06-01
发表期刊	IEEE TRANSACTIONS ON IMAGE PROCESSING
ISSN	1057-7149
卷号	25 期号:6 页码:2620-2634
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
DOI	10.1109/TIP.2016.2552402
语种	英语
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
WOS类目	Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
WOS记录号	WOS:000375121600001
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/22556
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.