Please use this identifier to cite or link to this item: https://olympias.lib.uoi.gr/jspui/handle/123456789/10946
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dc.contributor.authorNikou, C.en
dc.contributor.authorGalatsanos, N. P.en
dc.contributor.authorLikas, A. C.en
dc.date.accessioned2015-11-24T17:01:35Z-
dc.date.available2015-11-24T17:01:35Z-
dc.identifier.issn1057-7149-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/10946-
dc.rightsDefault Licence-
dc.subjectclustering-based image segmentationen
dc.subjectexpectation-maximization (em) algorithmen
dc.subjectgauss-markov random fielden
dc.subjectgaussian mixture modelen
dc.subjectmaximum a posteriori (map) estimationen
dc.subjectspatial smoothness constraintsen
dc.subjectgaussian mixtureen
dc.subjectem algorithmen
dc.subjectclassificationen
dc.subjectfiltersen
dc.titleA class-adaptive spatially variant mixture model for image segmentationen
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDoi 10.1109/Tip.2007.891771-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Ηλεκτρονικών Υπολογιστών και Πληροφορικήςel
heal.publicationDate2007-
heal.abstractWe propose a new approach for image segmentation based on a hierarchical and spatially variant mixture model. According to this model, the pixel labels are random variables and a smoothness prior is imposed on them. The main novelty of this work is a new family of smoothness priors for the label probabilities in spatially variant mixture models. These Gauss-Markov random field-based priors allow all their parameters to be estimated in closed form via the maximum a posteriori (MAP) estimation using the expectation-maximization methodology. Thus, it is possible to introduce priors with multiple parameters that adapt to different aspects of the data. Numerical experiments are presented where the proposed MAP algorithms were tested in various image segmentation scenarios. These experiments demonstrate that the proposed segmentation scheme compares favorably to both standard and previous spatially constrained mixture model-based segmentation.en
heal.journalNameIeee Transactions on Image Processingen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)



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