We presented a novel 3D non-local denoising algorithm for video enhancement. The main advantage of our algorithms is exploiting the correlation of patches in multi-frames. Meanwhile, assuming existence of larger similarity, we take advantage of temporal and spatial redundancies to estimate filter rather than calculate Euclidean distance. Comparative results show that our algorithms can be about 3 times faster than traditional non-local algorithms, while achieving almost equal denoising performance.Keywords-3D non-local denoising ; video enhancement ; video denoising
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