000087003 001__ 87003
000087003 005__ 20190316233745.0
000087003 037__ $$aCONF
000087003 245__ $$aVideo Coding Using a Deformation Compensation Algorithm Based on Adaptive Matching Pursuit Image Decompositions
000087003 269__ $$a2003
000087003 260__ $$bIEEE$$c2003
000087003 336__ $$aConference Papers
000087003 490__ $$aProc. of IEEE
000087003 520__ $$aToday's video codecs employ motion compensated prediction in combination with block matching techniques. These techniques, although achieving some level of adaptivity in their latest versions, continue to rely on the decomposition of frames on a set of artificial primitives: blocks. This paper presents a new approach to video coding. A geometrically adaptive image decomposition scheme using an over-complete basis is used to represent the scene. Using Matching Pursuit (MP), we are able to express local features such as position, anisotropic scale and orientation in terms of a set of spatio-frequential primitives. In order to perform frame prediction, only the changes in the parameters that determine these functions from frame to frame will have to be coded. Such an approach, in addition to being able to catch displacements in images deals as well in a natural way with local scale deformations and local rotations.
000087003 6531_ $$ageometrically adaptive
000087003 6531_ $$aLTS2
000087003 6531_ $$aMatching Pursuit
000087003 6531_ $$aovercomplete expansions
000087003 6531_ $$aVideo Representation
000087003 700__ $$0241064$$g134131$$aDivorra Escoda, O.
000087003 700__ $$aVandergheynst, P.$$g120906$$0240428
000087003 773__ $$tICIP
000087003 8564_ $$uhttps://infoscience.epfl.ch/record/87003/files/Divorra_Escoda2003_485.pdf$$zn/a$$s104705
000087003 909C0 $$xU10380$$0252392$$pLTS2
000087003 909CO $$ooai:infoscience.tind.io:87003$$qGLOBAL_SET$$pconf$$pSTI
000087003 937__ $$aEPFL-CONF-87003
000087003 970__ $$aDivorraEscoda2003_485/LTS
000087003 973__ $$sPUBLISHED$$aEPFL
000087003 980__ $$aCONF