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A regularization of nonlinear diffusion equations in a multiresolution framework
Authors:Gerd Teschke  Mariya Zhariy  Maria Joana Soares
Affiliation:1. Konrad Zuse Zentrum für Informationstechnik Berlin, Takustr.7, D‐14195 Berlin, Germany;2. Departamento de Matemática, Universidade de Minho, Campus de Gualtar, 4710‐057 Braga, Portugal
Abstract:We develop a regularization technique for Perona–Malik diffusion equations that relies on multiresolution techniques. The main result of this paper is to show that the chosen discretization overcomes the ill posedness of the nonlinear Perona–Malik model. The resulting algorithm is tested and the results are compared with pixel‐based methods. Copyright © 2007 John Wiley & Sons, Ltd.
Keywords:nonlinear diffusion  regularization  operator‐adapted refinable functions
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