Remote Sensing Image Reconstruction Method Based on Non-Local Similarity and Low Rank Matrix

2016 ◽  
Vol 36 (6) ◽  
pp. 0611002
Author(s):  
黄芝娟 Huang Zhijuan ◽  
唐超影 Tang Chaoying ◽  
陈跃庭 Chen Yueting ◽  
李奇 Li Qi ◽  
徐之海 Xu Zhihai ◽  
...  
2014 ◽  
Vol 34 (6) ◽  
pp. 111-122 ◽  
Author(s):  
Wei Li ◽  
Lei Zhao ◽  
Zhijie Lin ◽  
Duanqing Xu ◽  
Dongming Lu

2016 ◽  
Vol 8 (6) ◽  
pp. 499 ◽  
Author(s):  
Hongyang Lu ◽  
Jingbo Wei ◽  
Lizhe Wang ◽  
Peng Liu ◽  
Qiegen Liu ◽  
...  

Entropy ◽  
2021 ◽  
Vol 23 (2) ◽  
pp. 158
Author(s):  
Jiucheng Xu ◽  
Yihao Cheng ◽  
Yuanyuan Ma

Traditional image denoising algorithms obtain prior information from noisy images that are directly based on low rank matrix restoration, which pays little attention to the nonlocal self-similarity errors between clear images and noisy images. This paper proposes a new image denoising algorithm based on low rank matrix restoration in order to solve this problem. The proposed algorithm introduces the non-local self-similarity error between the clear image and noisy image into the weighted Schatten p-norm minimization model using the non-local self-similarity of the image. In addition, the low rank error is constrained by using Schatten p-norm to obtain a better low rank matrix in order to improve the performance of the image denoising algorithm. The results demonstrate that, on the classic data set, when comparing with block matching 3D filtering (BM3D), weighted nuclear norm minimization (WNNM), weighted Schatten p-norm minimization (WSNM), and FFDNet, the proposed algorithm achieves a higher peak signal-to-noise ratio, better denoising effect, and visual effects with improved robustness and generalization.


Author(s):  
Xinjian Huang ◽  
Bo Du ◽  
Weiwei Liu

The R, G and B channels of a color image generally have different noise statistical properties or noise strengths. It is thus problematic to apply grayscale image denoising algorithms to color image denoising. In this paper, based on the non-local self-similarity of an image and the different noise strength across each channel, we propose a MultiChannel Weighted Schatten p-Norm Minimization (MCWSNM) model for RGB color image denoising. More specifically, considering a small local RGB patch in a noisy image, we first find its nonlocal similar cubic patches in a search window with an appropriate size. These similar cubic patches are then vectorized and grouped to construct a noisy low-rank matrix, which can be recovered using the Schatten p-norm minimization framework. Moreover, a weight matrix is introduced to balance each channel’s contribution to the final denoising results. The proposed MCWSNM can be solved via the alternating direction method of multipliers. Convergence property of the proposed method are also theoretically analyzed . Experiments conducted on both synthetic and real noisy color image datasets demonstrate highly competitive denoising performance, outperforming comparison algorithms, including several methods based on neural networks.


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