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Time-delay regularization of anisotropic diffusionand image processing

Published online by Cambridge University Press:  15 April 2005

Abdelmounim Belahmidi
Affiliation:
CEREMADE (CNRS UMR 7534), Université de Paris Dauphine, 75775 Paris Cedex 16, France. belamid@ceremade.dauphine.fr
Antonin Chambolle
Affiliation:
CMAP (CNRS UMR 7641), École Polytechnique, 91128 Palaiseau Cedex, France. antonin.chambolle@polytechnique.fr
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Abstract

We study a time-delay regularization of the anisotropicdiffusion model for image denoisingof Perona and Malik [IEEE Trans. Pattern Anal. Mach. Intell12 (1990) 629–639], which has been proposed by Nitzberg and Shiota [IEEE Trans. Pattern Anal. Mach. Intell14 (1998) 826–835].In the two-dimensional case, we show the convergence of a numericalapproximation and the existence of a weak solution. Finally, we show someexperiments on images.

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Type
Research Article
Copyright
© EDP Sciences, SMAI, 2005

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