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Recursive Non-Local Means Filter For Video Denoising, Redha A. Ali, Russell C. Hardie
Recursive Non-Local Means Filter For Video Denoising, Redha A. Ali, Russell C. Hardie
Russell C. Hardie
In this paper, we propose a computationally efficient algorithm for video denoising that exploits temporal and spatial redundancy. The proposed method is based on non-local means (NLM). NLM methods have been applied successfully in various image denoising applications. In the single-frame NLM method, each output pixel is formed as a weighted sum of the center pixels of neighboring patches, within a given search window. The weights are based on the patch intensity vector distances. The process requires computing vector distances for all of the patches in the search window. Direct extension of this method from 2D to 3D, for video …