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A New Fast Algorithm for Constrained Four-Directional Total Variation Image Denoising Problem

Abstract : A new four-directional total variation (4-TV) model, applicable to isotropic and anisotropic TV functions, is proposed for image denoising. A dual based fast gradient projection algorithm for the constrained 4-TV image denoising problem is also reported which combines the well-known gradient projection and the fast gradient projection methods. Experimental results show that this model provides in most cases a better signal to noise ratio when compared to previous models like the reference TV, the total generalized variation, and the nonlocal total variation
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01260605
Contributor : Laurent Jonchère <>
Submitted on : Friday, January 22, 2016 - 1:55:54 PM
Last modification on : Monday, March 9, 2020 - 2:44:20 PM

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Fan Liao, Jean Louis Coatrieux, Jiasong Wu, Huazhong Shu. A New Fast Algorithm for Constrained Four-Directional Total Variation Image Denoising Problem. Mathematical Problems in Engineering, Hindawi Publishing Corporation, 2015, 2015, pp.e815132. ⟨10.1155/2015/815132⟩. ⟨hal-01260605⟩

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