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dc.contributor.authorBandyopadhyay, S. K.en
dc.contributor.authorKondi, L. P.en
dc.date.accessioned2015-11-24T17:01:43Z-
dc.date.available2015-11-24T17:01:43Z-
dc.identifier.issn1051-8215-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/10968-
dc.rightsDefault Licence-
dc.subjectoptimizationen
dc.subjectshape-adaptive discrete cosine transform (sa-dct)en
dc.subjectshape-adaptive discrete wavelet transform (sa-dwt)en
dc.subjectshape codingen
dc.subjecttexture codingen
dc.subjectchain codesen
dc.subjectencoding schemeen
dc.subjectline drawingsen
dc.subjectvideoen
dc.subjectrepresentationen
dc.subjectperformanceen
dc.subjectsequencesen
dc.subjectcurvesen
dc.subjectmpeg-4en
dc.titleOptimal bit allocation for joint texture-aware contour-based shape coding and shape-adaptive texture codingen
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDoi 10.1109/Tcsvt.2008.918784-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Ηλεκτρονικών Υπολογιστών και Πληροφορικήςel
heal.publicationDate2008-
heal.abstractIn this paper, an operationally optimal joint shape and texture coding algorithm is proposed that uses shape-adaptive texture coding as well as texture-aware shape coding. The solution is optimal in the operational rate distortion sense, i.e, given the coding setup, the solution will guarantee the smallest possible distortion for a given rate. The shape is approximated using polygons or higher order curves. We also consider biasing the cost function to favor horizontal and vertical edges for the case of polygon approximation (biased polygon approximation). The texture is encoded using shape-adaptive discrete cosine transform. or shape-adaptive discrete wavelet transform of the MPEG-4 video codec. A comparison is drawn between the two techniques. Both a fixed-width and a variable-width tolerance band for shape coding are considered. The variable width of the tolerance band is a function of the texture profile, i.e, the width is inversely proportional to the magnitude of the image gradient. Experimental results are presented and conclusions are drawn.en
heal.journalNameIeee Transactions on Circuits and Systems for Video Technologyen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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