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LU Bibo, GUO Zhichang, CAO Yang, LI Meihui, HU Xinyao
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Abstract: A nonlinear partial differential equation model based on nonlocal information was proposed to removenoise and preserve the edges. Nonlocal gradient is introduced to detect the edges and adjust the speed of the diffusion inside and outside the smooth region. Oneside scheme is taken for calculating the nonlocal gradient norm to preserve edge information in discret situation. Theorical analysis and numerical results demonstratethe performance of the new method.
Key words: image denoising, nonlocal information, partial differ ential equation
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LU Bibo, GUO Zhichang, CAO Yang, LI Meihui, HU Xinyao. Nonlocal Partial Differential Equation Model for Image Denoising[J].J4, 2007, 45(06): 935-936.
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http://xuebao.jlu.edu.cn/lxb/EN/Y2007/V45/I06/935
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