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Optical Engineering • Open Access

Nonlocal oriented method for image denoising
Author(s): Yonghui Gao; Jie Yang; Lv Guo

Paper Abstract

Denoising is expected to improve the image quality and the performance of analysis. Combining the nonlocal-means filter and the mean-shift method, we derive a nonlocal weights estimator considering not only similarity of intensity but also the spatial relationship between image blocks. Filtering is performed in each image block and the center pixel is restored by an oriented filter. Experimental results show the performance of the proposed method in improving the signal-to-noise ratio and preserving local textures.

Paper Details

Date Published: 1 March 2011
PDF: 3 pages
Opt. Eng. 50(3) 030502 doi: 10.1117/1.3555083
Published in: Optical Engineering Volume 50, Issue 3
Show Author Affiliations
Yonghui Gao, Shanghai Jiao Tong Univ. (China)
Jie Yang, Shanghai Jiao Tong Univ. (China)
Lv Guo, Shanghai Jiao Tong Univ. (China)

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