A class of quasi-variational inequalities for adaptive image denoising and decomposition
Frank Lenzen (),
Florian Becker,
Jan Lellmann,
Stefania Petra and
Christoph Schnörr
Computational Optimization and Applications, 2013, vol. 54, issue 2, 398 pages
Abstract:
We introduce a class of adaptive non-smooth convex variational problems for image denoising in terms of a common data fitting term and a support functional as regularizer. Adaptivity is modeled by a set-valued mapping with closed, compact and convex values, that defines and steers the regularizer depending on the variational solution. This extension gives rise to a class of quasi-variational inequalities. We provide sufficient conditions for the existence of fixed points as solutions, and an algorithm based on solving a sequence of variational problems. Denoising experiments with spatial and spatio-temporal image data and an adaptive total variation regularizer illustrate our approach. Copyright Springer Science+Business Media, LLC 2013
Keywords: Quasi-variational inequalities; Adaptive image denoising; Total variation regularization; Solution-dependent adaptivity (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:spr:coopap:v:54:y:2013:i:2:p:371-398
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DOI: 10.1007/s10589-012-9456-0
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