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hal.structure.identifierLaboratoire Bordelais d'Analyse et Géométrie [LaBAG]
dc.contributor.authorDOSSAL, Charles
hal.structure.identifierCEntre de REcherches en MAthématiques de la DEcision [CEREMADE]
dc.contributor.authorPEYRÉ, Gabriel
hal.structure.identifierEquipe Image - Laboratoire GREYC - UMR6072
dc.contributor.authorFADILI, Jalal M.
dc.date.created2009-01
dc.date.issued2009-04
dc.date.conference2009-04-06
dc.description.abstractEnThis paper explores numerically the efficiency of $\lun$ minimization for the recovery of sparse signals from compressed sampling measurements in the noiseless case. Inspired by topological criteria for $\lun$-identifiability, a greedy algorithm computes sparse vectors that are difficult to recover by $\ell_1$-minimization. We evaluate numerically the theoretical analysis without resorting to Monte-Carlo sampling, which tends to avoid worst case scenarios. This allows one to challenge sparse recovery conditions based on polytope projection and on the restricted isometry property.
dc.description.sponsorshipAdaptivité pour la représentation des images naturelles et des textures - ANR-08-EMER-0009
dc.language.isoen
dc.source.titleProceedeings of SPARS'09
dc.title.enA Numerical Exploration of Compressed Sampling Recovery
dc.typeCommunication dans un congrès
dc.subject.halMathématiques [math]/Théorie de l'information et codage [math.IT]
dc.subject.halInformatique [cs]/Théorie de l'information [cs.IT]
bordeaux.page5p.
bordeaux.conference.titleSPARS'09, Signal Processing with Adaptive Sparse Structured Representations
bordeaux.countryFR
bordeaux.title.proceedingProceedeings of SPARS'09
bordeaux.conference.citySaint-Malo
bordeaux.peerReviewedoui
hal.identifierhal-00365028
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.end2009-04-09
hal.popularnon
hal.audienceInternationale
dc.subject.itCompressed sensing
dc.subject.itsparsity
dc.subject.itL1 minimization
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00365028v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=Proceedeings%20of%20SPARS'09&rft.date=2009-04&rft.spage=5p.&rft.epage=5p.&rft.au=DOSSAL,%20Charles&PEYR%C3%89,%20Gabriel&FADILI,%20Jalal%20M.&rft.genre=unknown


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