2004 · 23 citations · 10 references
Natural SciencesMathematicsDifferential EquationsDigital ImagingOptimizationDigital Image ProcessingImage ProcessingImage ReconstructionImage RestorationTexture AnalysisVariational FormulationFunctions Of Bounded VariationImage DenoisingPartial Differential Equation SolversPartial Differential Equation SystemsTexture DenoisingTotal Variation MinimizationVariational Image RestorationVariational Methods In Partial Differential Equations
We propose a new model for image restoration and decomposition, based on the total variation minimization of Rudin-Osher-Fatemi (1992), and on some new techniques by Y. Meyer (2002) for oscillatory functions. An initial image f is decomposed into a cartoon part u and a texture or noise part v. The u component is modeled by a function of bounded variation, while the v component by an oscillatory function, with bounded H/sup -1/ norm. After some transformation, the resulting PDE is of fourth order. The proposed model continues the ideas and techniques previously introduced by the authors in L Vese et al., (2002). Image decomposition and denoising numerical results will be shown by the proposed new fourth order nonlinear partial differential equation.
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