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Contrast re-enhancement of Total-Variation regularization jointly with the Douglas-Rachford iterations

hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorDELEDALLE, Charles-Alban
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorPAPADAKIS, Nicolas
hal.structure.identifierLaboratoire Traitement et Communication de l'Information [LTCI]
dc.contributor.authorSALMON, Joseph
dc.date.accessioned2024-04-04T03:17:49Z
dc.date.available2024-04-04T03:17:49Z
dc.date.created2015-07-06
dc.date.issued2015-07-06
dc.date.conference2015-07-06
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/194344
dc.description.abstractEnRestoration of a piece-wise constant signal can be performed using anisotropic Total-Variation (TV) regularization. Anisotropic TV may capture well discontinuities but suffers from a systematic loss of contrast. This contrast can be re-enhanced in a post-processing step known as least-square refitting. We propose here to jointly estimate the refitting during the Douglas-Rachford iterations used to produce the original TV result. Numerical simulations show that our technique is more robust than the naive post-processing one.
dc.language.isoen
dc.title.enContrast re-enhancement of Total-Variation regularization jointly with the Douglas-Rachford iterations
dc.typeCommunication dans un congrès
dc.subject.halInformatique [cs]/Traitement des images
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.conference.titleSignal Processing with Adaptive Sparse Structured Representations (SPARS'15)
bordeaux.countryGB
bordeaux.conference.cityCambridge
bordeaux.peerReviewedoui
hal.identifierhal-01187061
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.end2015-07-09
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01187061v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2015-07-06&rft.au=DELEDALLE,%20Charles-Alban&PAPADAKIS,%20Nicolas&SALMON,%20Joseph&rft.genre=unknown


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