DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jang, SK | ko |
dc.contributor.author | Ra, Jong Beom | ko |
dc.date.accessioned | 2013-03-03T17:37:33Z | - |
dc.date.available | 2013-03-03T17:37:33Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2003-12 | - |
dc.identifier.citation | JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION, v.14, pp.526 - 542 | - |
dc.identifier.issn | 1047-3203 | - |
dc.identifier.uri | http://hdl.handle.net/10203/79715 | - |
dc.description.abstract | We propose a modified motion estimation algorithm that is adequate for error localization and temporal error concealment in transmitting videos over unreliable channels. In order to achieve good error concealment performance, the proposed algorithm implicitly imposes spatial correlations on motion vectors by extending the block size and overlapping blocks in motion estimation. Thereby, the obtained motion vectors can be used to improve error concealment performance while keeping the encoding efficiency with negligible overhead. In addition, the proposed motion estimation can provide a new error detection measure so that we can maximally utilize uncorrupted data rather than simply discarding all data in a defected packet. Simulation results show that the proposed motion estimation scheme provides significant improvements in error concealment performance over the existing schemes and improves the bit utility over a wide range of error conditions. (C) 2003 Elsevier Inc. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE | - |
dc.subject | ROBUST TRANSMISSION | - |
dc.subject | MODE SELECTION | - |
dc.subject | VIDEO | - |
dc.subject | IMAGES | - |
dc.subject | RESILIENCE | - |
dc.subject | ALGORITHM | - |
dc.subject | H.263 | - |
dc.title | Efficient error localization and temporal concealment based on motion estimation of enlarged block | - |
dc.type | Article | - |
dc.identifier.wosid | 000187152800009 | - |
dc.identifier.scopusid | 2-s2.0-0348039981 | - |
dc.type.rims | ART | - |
dc.citation.volume | 14 | - |
dc.citation.beginningpage | 526 | - |
dc.citation.endingpage | 542 | - |
dc.citation.publicationname | JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION | - |
dc.contributor.localauthor | Ra, Jong Beom | - |
dc.contributor.nonIdAuthor | Jang, SK | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | robust video transmission | - |
dc.subject.keywordAuthor | motion estimation | - |
dc.subject.keywordAuthor | error localization | - |
dc.subject.keywordAuthor | temporal error concealment | - |
dc.subject.keywordAuthor | MPEG-4 | - |
dc.subject.keywordPlus | ROBUST TRANSMISSION | - |
dc.subject.keywordPlus | MODE SELECTION | - |
dc.subject.keywordPlus | VIDEO | - |
dc.subject.keywordPlus | IMAGES | - |
dc.subject.keywordPlus | RESILIENCE | - |
dc.subject.keywordPlus | ALGORITHM | - |
dc.subject.keywordPlus | H.263 | - |
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