Contrast re-enhancement of Total-Variation regularization jointly with the Douglas-Rachford iterations
| hal.structure.identifier | Institut de Mathématiques de Bordeaux [IMB] | |
| dc.contributor.author | DELEDALLE, Charles-Alban | |
| hal.structure.identifier | Institut de Mathématiques de Bordeaux [IMB] | |
| dc.contributor.author | PAPADAKIS, Nicolas | |
| hal.structure.identifier | Laboratoire Traitement et Communication de l'Information [LTCI] | |
| dc.contributor.author | SALMON, Joseph | |
| dc.date.accessioned | 2024-04-04T03:17:49Z | |
| dc.date.available | 2024-04-04T03:17:49Z | |
| dc.date.created | 2015-07-06 | |
| dc.date.issued | 2015-07-06 | |
| dc.date.conference | 2015-07-06 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/194344 | |
| dc.description.abstractEn | Restoration 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.iso | en | |
| dc.title.en | Contrast re-enhancement of Total-Variation regularization jointly with the Douglas-Rachford iterations | |
| dc.type | Communication dans un congrès | |
| dc.subject.hal | Informatique [cs]/Traitement des images | |
| bordeaux.hal.laboratories | Institut de Mathématiques de Bordeaux (IMB) - UMR 5251 | * |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.institution | Bordeaux INP | |
| bordeaux.institution | CNRS | |
| bordeaux.conference.title | Signal Processing with Adaptive Sparse Structured Representations (SPARS'15) | |
| bordeaux.country | GB | |
| bordeaux.conference.city | Cambridge | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01187061 | |
| hal.version | 1 | |
| hal.invited | non | |
| hal.proceedings | oui | |
| hal.conference.end | 2015-07-09 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01187061v1 | |
| bordeaux.COinS | ctx_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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