Image Restoration using a Nonlinear Second-order Parabolic PDE-based Scheme

Barbu, Tudor; Moroşanu, Costică

doi:10.1515/auom-2017-0003

Abstract

A novel anisotropic diffusion-based image denoising and restoration approach is proposed in this paper. A variational model for image restoration is introduced first, then the corresponding Euler-Lagrange equation being determined. A nonlinear parabolic PDE model is then obtained from this equation. It is based on a novel edge-stopping function and conductance parameter. A serious mathematical treatment is performed on this second-order anisotropic diffusion scheme, its well-possedness being investigated. Then, a consistent explicit numerical approximation scheme based on the finite difference method is developed for the proposed PDE model.

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Image Restoration using a Nonlinear Second-order Parabolic PDE-based Scheme

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