Adaptive Image Denoising Based on Sparse Decomposition
Different behaviors of image information and noise in sparse decomposition were studied to identify the differences between image information and noise. According to the different coherences between image (or residual image), noise and over-complete dictionary, image information and noise are distinguished. One image adaptive filtering is realized by taking coherent ratio threshold as the constraints of extracting available information.
Y. T. Jiang and Z. K. Yin, "Adaptive Image Denoising Based on Sparse Decomposition", Applied Mechanics and Materials, Vols. 130-134, pp. 2932-2935, 2012