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Hyperspectral Image Denoising Via Nonlocal Rank Residual Modeling
Zha, Zhiyuan1; Wen, Bihan1; Yuan, Xin2; Zhou, Jiantao3; Zhu, Ce4
2023
Conference Name48th IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2023
Source PublicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Conference Date2023/06/04-2023/06/10
Conference PlaceRhodes Island
Abstract

Nonlocal low-rank (LR) tensor modeling has shown great potential in hyperspectral image (HSI) denoising, which first uses the nonlocal self-similarity (NSS) prior to search for many similar full-band patches to form three-dimensional nonlocal full-band groups (tensors), and then usually enforces an LR penalty on each nonlocal full-band group. However, in most existing methods, the LR tensor is only approximated directly from the degraded nonlocal full-band tensor, which is subject to certain issues (e.g., in heavy noise environments) in obtaining a suboptimal tensor approximation, and thus leading to unsatisfactory denoising results. In this paper, we propose a novel nonlocal rank residual (NRR) approach for highly effective HSI denoising, which progressively approximates the underlying L-R tensor via minimizing the rank residual. Towards this end, we first obtain a good estimate of the original nonlocal full-band group by using the NSS prior, and then the rank residual between the de-graded nonlocal full-band group with the corresponding estimated nonlocal full-band group is minimized to achieve a more accurate LR tensor. Moreover, the global spectral LR prior is employed to reduce the spectral redundancy of HSI in the proposed denoising framework. Finally, we develop a simple yet effective alternating minimization algorithm to jointly refine global spectral information and nonlocal full-band groups. Experimental results clearly show that the proposed NRR algorithm outperforms many state-of-the-art HSI denoising methods. The source code of the proposed NRR algorithm for HSI denoising is available at: https://github.com/zhazhiyuan/NRR_HSI_Denoising_Demo.git.

KeywordAlternating Minimization Hsi Denoising Low-rank Nonlocal Rank Residual Nonlocal Self-similarity
DOI10.1109/ICASSP49357.2023.10096242
URLView the original
Language英語English
Scopus ID2-s2.0-85180416610
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Document TypeConference paper
CollectionDEPARTMENT OF COMPUTER AND INFORMATION SCIENCE
Faculty of Science and Technology
Corresponding AuthorWen, Bihan
Affiliation1.Nanyang Technological University, School of Electrical & Electronic Engineering, 639798, Singapore
2.Westlake University, School of Engineering, Hangzhou, 310024, China
3.University of Macau, Department of Computer and Information Science, 999078, Macao
4.University of Electronic Science and Technology of China, School of Information and Communication Engineering, Chengdu, 611731, China
Recommended Citation
GB/T 7714
Zha, Zhiyuan,Wen, Bihan,Yuan, Xin,et al. Hyperspectral Image Denoising Via Nonlocal Rank Residual Modeling[C], 2023.
APA Zha, Zhiyuan., Wen, Bihan., Yuan, Xin., Zhou, Jiantao., & Zhu, Ce (2023). Hyperspectral Image Denoising Via Nonlocal Rank Residual Modeling. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings.
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