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hal.structure.identifierDépartement Traitement du Signal et des Images [TSI]
dc.contributor.authorSALMON, Joseph
hal.structure.identifierDepartment of Electrical and Computer Engineering, , Madison, WI, USA
dc.contributor.authorHARMANY, Zachary
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorDELEDALLE, Charles-Alban
hal.structure.identifierDepartment of Electrical and Computer Engineering [Durham] [ECE]
dc.contributor.authorWILLETT, Rebecca
dc.date.accessioned2024-04-04T02:19:08Z
dc.date.available2024-04-04T02:19:08Z
dc.date.created2012-06-02
dc.date.issued2014-02-01
dc.identifier.issn0924-9907
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/189376
dc.description.abstractEnPhoton-limited imaging, which arises in applications such as spectral imaging, night vision, nuclear medicine, and astronomy, occurs when the number of photons collected by a sensor is small relative to the desired image resolution. Typically a Poisson distribution is used to model these observations, and the inherent heteroscedasticity of the data combined with standard noise removal methods yields significant artifacts. This paper introduces a novel denoising algorithm for photon-limited images which combines elements of dictionary learning and sparse representations for image patches. The method employs both an adaptation of Principal Component Analysis (PCA) for Poisson noise and recently developed sparsity regularized convex optimization algorithms for photon-limited images. A comprehensive empirical evaluation of the proposed method helps characterize the performance of this approach relative to other state-of-the-art denoising methods. The results reveal that, despite its simplicity, PCA-flavored denoising appears to be highly competitive in very low light regimes.
dc.language.isoen
dc.publisherSpringer Verlag
dc.subject.enImage denoising
dc.subject.enPCA
dc.subject.enGradient methods
dc.subject.enNewton's method
dc.subject.enSignal representations
dc.title.enPoisson noise reduction with non-local PCA
dc.typeArticle de revue
dc.identifier.doi10.1007/s10851-013-0435-6
dc.subject.halInformatique [cs]/Traitement des images
dc.subject.halInformatique [cs]/Vision par ordinateur et reconnaissance de formes [cs.CV]
dc.subject.halInformatique [cs]/Apprentissage [cs.LG]
dc.identifier.arxiv1206.0338
bordeaux.journalJournal of Mathematical Imaging and Vision
bordeaux.page279-294
bordeaux.volume48
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.issue2
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-00957837
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00957837v1
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