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dc.contributorDepartment of Electrical Engineering-
dc.creatorChan, YL-
dc.creatorSiu, WC-
dc.rights© 1994 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.subjectHuffman codesen_US
dc.subjectAdaptive codesen_US
dc.subjectDiscrete cosine transformsen_US
dc.subjectImage sequencesen_US
dc.subjectTransform codingen_US
dc.titleA new adaptive interframe transform coding using directional classificationen_US
dc.typeConference Paperen_US
dcterms.abstractInterframe transform coding is affected not only by the statistics of spatial details within a frame, but also by the variation of the amount of movement and other temporal activities in different regions of the image sequence. Therefore, adaptive techniques have to be used in order to achieve good image quality. In this paper, we propose a new version of the adaptive interframe coding method, namely directional classification, which is based on image sequence statistics. Blocks with different perceptual features such as edges and high motion activity are categorized to different classes. Then, a new adaptive quantization, associated with appropriate scanning and huffman coding, are employed based on the classification map. Coding tests using computer simulation show this technique is indeed very efficient.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationICIP-94 : 1994 IEEE International Conference on Image Processing : proceedings : November 13-16, 1994, Austin, Texas, v. 2, p. 977-981-
dc.relation.ispartofbookICIP-94 : 1994 IEEE International Conference on Image Processing : proceedings : November 13-16, 1994, Austin, Texas-
dc.relation.conferenceIEEE International Conference on Image Processing [ICIP]-
dc.description.oaVersion of Recorden_US
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