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An improved nonlocal means algorithm based on regression analysis

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3 Author(s)
Jin Xu ; China Digital Video Technol. Co. Ltd., Beijing, China ; Pengcheng Zheng ; Rui Lv

In this paper we propose a denoising method under the powerful framework-non local means (NL-means), in conjunction with regression analysis. First, the conception and development of NL-means is proposed. Second, an image important area map (IIAM) is calculated for the protection of edge and structure regions during denoising. Therefore, improved version of NL-means is carried out, which uses a novel patch similarity calculation rule benefited from IIAM. This algorithm can better extract and smooth the important information in the noisy image and finally, experimental results validate the proposed algorithm.

Published in:

Computer Research and Development (ICCRD), 2011 3rd International Conference on  (Volume:4 )

Date of Conference:

11-13 March 2011