Rate-distortion and complexity optimized motion estimation for H.264 video coding

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dc.authorid0000-0002-6842-1528
dc.contributor.authorAteş, Hasan Fehmien_US
dc.contributor.authorAltunbaşak, Yücelen_US
dc.date.accessioned2015-01-15T23:01:07Z
dc.date.available2015-01-15T23:01:07Z
dc.date.issued2008-02
dc.departmentIşık Üniversitesi, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.departmentIşık University, Faculty of Engineering, Department of Electrical-Electronics Engineeringen_US
dc.descriptionThis work was supported in part by the TÜBİTAK Grant 104E125.en_US
dc.description.abstract11.264 video coding standard supports several inter-prediction coding modes that use macroblock (MB) partitions with variable block sizes. Rate-distortion (R-D) optimal selection of both the motion vectors (MVs) and the coding mode of each MB is essential for an H.264 encoder to achieve superior coding efficiency. Unfortunately, searching for optimal MVs of each possible subblock incurs a heavy computational cost. In this paper, in order to reduce the computational burden of integer-pel motion estimation (ME) without sacrificing from the coding performance, we propose a R-D and complexity joint optimization framework. Within this framework, we develop a simple method that determines for each MB which partitions are likely to be optimal. MV search is carried out for only the selected partitions, thus reducing the complexity of the ME step. The mode selection criteria is based on a measure of spatiotemporal activity within the MB. The procedure minimizes the coding loss at a given level of computational complexity either for the full video sequence or for each single frame. For the latter case, the algorithm provides a tight upper bound on the worst case complexity/execution time of the ME module. Simulation results show that the algorithm speeds up integer-pel ME by a factor of up to 40 with less than 0.2 dB loss in coding efficiency.en_US
dc.description.sponsorshipTÜBİTAKen_US
dc.description.versionPublisher's Versionen_US
dc.identifier.citationAteş, H. F. & Altunbasak, Y. (2008). Rate-distortion and complexity optimized motion estimation for H.264 video coding. IEEE Transactions on Circuits and Systems for Video Technology, 18(2), 159-171. doi:10.1109/TCSVT.2008.918114en_US
dc.identifier.doi10.1109/TCSVT.2008.918114
dc.identifier.endpage171
dc.identifier.issn1051-8215
dc.identifier.issn1558-2205
dc.identifier.issue2
dc.identifier.scopus2-s2.0-40649088679
dc.identifier.scopusqualityQ1
dc.identifier.startpage159
dc.identifier.urihttps://hdl.handle.net/11729/300
dc.identifier.urihttp://dx.doi.org/10.1109/TCSVT.2008.918114
dc.identifier.volume18
dc.identifier.wosWOS:000254029900002
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakScience Citation Index Expanded (SCI-EXPANDED)en_US
dc.institutionauthorAteş, Hasan Fehmien_US
dc.institutionauthorid0000-0002-6842-1528
dc.language.isoenen_US
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.publisherIEEE-INST Electrical Electronics Engineers Incen_US
dc.relation.ispartofIEEE Transactions on Circuits and Systems for Video Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAlgorithmen_US
dc.subjectDecisionen_US
dc.subjectComplexityen_US
dc.subjectH.264en_US
dc.subjectMotion estimation (ME)en_US
dc.subjectOptimizationen_US
dc.subjectRate-distortion (R-D)en_US
dc.subjectVideo codingen_US
dc.subjectAlgorithmsen_US
dc.subjectComputational complexityen_US
dc.subjectMotion compensationen_US
dc.subjectVectorsen_US
dc.subjectMotion vectors (MV)en_US
dc.subjectRate distortionen_US
dc.subjectImage codingen_US
dc.titleRate-distortion and complexity optimized motion estimation for H.264 video codingen_US
dc.typeArticleen_US
dspace.entity.typePublication

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