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Image restoration via patch orientation-based low-rank matrix approximation and nonlocal means

[+] Author Affiliations
Di Zhang

Guangdong Medical College, School of Information Engineering, Dongguan, Guangdong, 523808, China

Jiazhong He

Shaoguan University, Department of Physics, Shaoguan, Guangdong, 512005, China

Minghui Du

South China University of Technology, School of Electronics and Information, Guangzhou, Guangdong, 510641, China

J. Electron. Imaging. 25(2), 023021 (Apr 18, 2016). doi:10.1117/1.JEI.25.2.023021
History: Received December 29, 2015; Accepted March 22, 2016
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Abstract.  Low-rank matrix approximation and nonlocal means (NLM) are two popular techniques for image restoration. Although the basic principle for applying these two techniques is the same, i.e., similar image patches are abundant in the image, previously published related algorithms use either low-rank matrix approximation or NLM because they manipulate the information of similar patches in different ways. We propose a method for image restoration by jointly using low-rank matrix approximation and NLM in a unified minimization framework. To improve the accuracy of determining similar patches, we also propose a patch similarity measurement based on curvelet transform. Extensive experiments on image deblurring and compressive sensing image recovery validate that the proposed method achieves better results than many state-of-the-art algorithms in terms of both quantitative measures and visual perception.

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Citation

Di Zhang ; Jiazhong He and Minghui Du
"Image restoration via patch orientation-based low-rank matrix approximation and nonlocal means", J. Electron. Imaging. 25(2), 023021 (Apr 18, 2016). ; http://dx.doi.org/10.1117/1.JEI.25.2.023021


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