Coding of depth-maps using piecewise linear functions

Y. Morvan, D.S. Farin, P.H.N. With, de

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Abstract

An efficient. way t.o t.mnsmil, mul/.'i-view images is to send a single te:Di.uTe image togelheT with a cOTTesponding depth-map. The dept.h-map spec~fies the distance vetween each pi.1;d and the cam em,. With t.his inforrnat.ion, aTvit.m.7·y 3-D views can be genemt.cd at the decodeT. In this papeT, we pmpose a new algor'ithm for the coding of depth-maps that. pTOvides an efficient. re]wesent.ation of smooth regions as well as geome/,ric featuTes such as object. contO'llTs. OUT alg07it,hm uses a segmcnt.ation pmCed'llTC based on a quadt.Tee decomposition and TTI,odds the depth-map content. wit.h piecewise linear' funct.ions. We achieved a vit,-rat.e as low as 0.33 vii/pi.Tel, wit.hout any cntrvpy coding. The attmct.ivity (~r the coding algorit.hm is that., vy e.Tploiting spec~fic pTOper·ties of depth-maps, no degmdat.ions are shown along discont.iTl.1Lities, which is import.ant. few depth percept.ion.
Original languageEnglish
Title of host publication26th symposium on information theory in the Benelux
EditorsJ. Cardinal, N. Cerf, O. Delgrange
Place of PublicationBrussels
PublisherWerkgemeenschap voor Informatie- en Communicatietheorie (WIC)
Pages121-128
ISBN (Print)90-71048-21-7
Publication statusPublished - 2005
Event2005 Symposium on Information Theory in the Benelux (SITB 2005) - Brussels, Belgium
Duration: 19 May 200520 May 2005
Conference number: 26

Conference

Conference2005 Symposium on Information Theory in the Benelux (SITB 2005)
CountryBelgium
CityBrussels
Period19/05/0520/05/05

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