Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/256
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dc.contributorDepartment of Electronic and Information Engineering-
dc.creatorJing, X-
dc.creatorSiu, WC-
dc.creatorChau, LP-
dc.creatorConstantinides, AG-
dc.date.accessioned2014-12-11T08:23:42Z-
dc.date.available2014-12-11T08:23:42Z-
dc.identifier.isbn978-142-44-2311-8-
dc.identifier.urihttp://hdl.handle.net/10397/256-
dc.language.isoenen_US
dc.publisherIEEEen_US
dc.rights© 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_US
dc.rightsThis material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.en_US
dc.subjectTranscodingen_US
dc.subjectMode decisionen_US
dc.subjectH.264/AVCen_US
dc.titleFast intra mode decision algorithm for H.263 to H.264/AVC transcodingen_US
dc.typeConference Paperen_US
dcterms.abstractIn this paper, we present a fast mode decision method for H.263 to H.264/AVC intraframe transcoding. The proposed algorithm is based on the observation that features of DCT coefficients extracted from H.263 coded intraframe strongly relates to the optimal mode in H.264/AVC intra mode decision. Specifically, the total number of non-zero AC coefficients of four 8x8 DCT blocks in H.263 is taken as a measurement in the intra block size decision. The objective is to reject improbable block types in earlier stages in order to achieve computation saving. In addition, a transform domain edge direction estimation is also adopted into our scheme to further speed up the intra mode prediction. Simulation results show that the proposed approach can reduce the computational complexity of intraframe transcoding by up to 65% while maintaining the rate-distortion (R-D) performance.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitation2008 IEEE International Conference on Neural Networks and Signal Processing (ICNNSP 08) : Zhenjiang, China, June 8-10, 2008, p. 666-670-
dcterms.issued2008-
dc.identifier.isiWOS:000265022400138-
dc.identifier.scopus2-s2.0-51849168125-
dc.identifier.rosgroupidr37017-
dc.description.ros2007-2008 > Academic research: refereed > Refereed conference paper-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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