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http://hdl.handle.net/10397/105640
Title: | Multi-channel weighted nuclear norm minimization for real color image denoising | Authors: | Xu, J Zhang, L Zhang, D Feng, X |
Issue Date: | 2017 | Source: | 2017 IEEE International Conference on Computer Vision (ICCV), 22–29 October 2017, Venice, Italy, p. 1105-1113 | Abstract: | Most of the existing denoising algorithms are developed for grayscale images. It is not trivial to extend them for color image denoising since the noise statistics in R, G, and B channels can be very different for real noisy images. In this paper, we propose a multi-channel (MC) optimization model for real color image denoising under the weighted nuclear norm minimization (WNNM) framework. We concatenate the RGB patches to make use of the channel redundancy, and introduce a weight matrix to balance the data fidelity of the three channels in consideration of their different noise statistics. The proposed MC-WNNM model does not have an analytical solution. We reformulate it into a linear equality-constrained problem and solve it via alternating direction method of multipliers. Each alternative updating step has a closed-form solution and the convergence can be guaranteed. Experiments on both synthetic and real noisy image datasets demonstrate the superiority of the proposed MC-WNNM over state-of-the-art denoising methods. | Publisher: | Institute of Electrical and Electronics Engineers | ISBN: | 978-1-5386-1032-9 (Electronic) 978-1-5386-1033-6 (Print on Demand(PoD)) |
DOI: | 10.1109/ICCV.2017.125 | Rights: | © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The following publication J. Xu, L. Zhang, D. Zhang and X. Feng, "Multi-channel Weighted Nuclear Norm Minimization for Real Color Image Denoising," 2017 IEEE International Conference on Computer Vision (ICCV), Venice, Italy, 2017, pp. 1105-1113 is available at https://doi.org/10.1109/ICCV.2017.125. |
Appears in Collections: | Conference Paper |
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Xu_Multi-Channel_Weighted_Nuclear.pdf | Pre-Published version | 1.53 MB | Adobe PDF | View/Open |
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