3-D motion estimation and wireframe adaptation including photometric effects for model-based coding of facial image sequences

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dc.citation.epage256en_US
dc.citation.issueNumber3en_US
dc.citation.spage246en_US
dc.citation.volumeNumber4en_US
dc.contributor.authorBozdağı, G.en_US
dc.contributor.authorTekalp, A. M.en_US
dc.contributor.authorOnural, L.en_US
dc.date.accessioned2019-01-22T13:05:10Z
dc.date.available2019-01-22T13:05:10Z
dc.date.issued1994-06en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractWe propose a novel formulation where 3-D global and local motion estimation and the adaptation of a generic wireframe model to a particular speaker are considered simultaneously within an optical flow based framework including the photometric effects of the motion. We use a flexible wireframe model whose local structure is characterized by the normal vectors of the patches which are related to the coordinates of the nodes. Geometrical constraints that describe the propagation of the movement of the nodes are introduced, which are then efficiently utilized to reduce the number of independent structure parameters. A stochastic relaxation algorithm has been used to determine optimum global motion estimates and the parameters describing the structure of the wireframe model. Results with both simulated and real facial image sequences are provided.en_US
dc.description.provenanceSubmitted by Ebru Kaya (ebrukaya@bilkent.edu.tr) on 2019-01-22T13:05:10Z No. of bitstreams: 1 10.1109-76.305870.pdf: 1063545 bytes, checksum: 8cd10906e1202afecb611816338ac43f (MD5)en
dc.description.provenanceMade available in DSpace on 2019-01-22T13:05:10Z (GMT). No. of bitstreams: 1 10.1109-76.305870.pdf: 1063545 bytes, checksum: 8cd10906e1202afecb611816338ac43f (MD5) Previous issue date: 1994-06en
dc.identifier.doi10.1109/76.305870en_US
dc.identifier.eissn1558-2205
dc.identifier.issn1051-8215
dc.identifier.urihttp://hdl.handle.net/11693/48256
dc.language.isoEnglishen_US
dc.publisherIEEEen_US
dc.relation.isversionofhttps://doi.org/10.1109/76.305870en_US
dc.source.titleIEEE Transactions On Circuits And Systems For Video Technologyen_US
dc.subjectMotion estimationen_US
dc.subjectGeometrical opticsen_US
dc.subjectOptical variables controlen_US
dc.subjectImage motion analysisen_US
dc.subjectPhotometryen_US
dc.subjectOptical propagationen_US
dc.subjectStochastic processesen_US
dc.subjectParameter estimationen_US
dc.subjectImage sequencesen_US
dc.title3-D motion estimation and wireframe adaptation including photometric effects for model-based coding of facial image sequencesen_US
dc.typeArticleen_US

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