Nonlocal oriented method for image denoising

Yonghui Gao; Jie Yang; Lv Guo

doi:10.1117/1.3555083

1 March 2011 Nonlocal oriented method for image denoising

Yonghui Gao, Jie Yang, Lv Guo

Author Affiliations +

Funded by: International Cooperation, Committee of Science and Technology, Shanghai

Optical Engineering, Vol. 50, Issue 3, 030502 (March 2011). https://doi.org/10.1117/1.3555083

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.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Yonghui Gao, Jie Yang, and Lv Guo "Nonlocal oriented method for image denoising," Optical Engineering 50(3), 030502 (1 March 2011). https://doi.org/10.1117/1.3555083

Published: 1 March 2011

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