DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, SD | ko |
dc.contributor.author | Ra, Jong Beom | ko |
dc.date.accessioned | 2013-03-03T17:32:20Z | - |
dc.date.available | 2013-03-03T17:32:20Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2003-03 | - |
dc.identifier.citation | JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION, v.14, pp.22 - 40 | - |
dc.identifier.issn | 1047-3203 | - |
dc.identifier.uri | http://hdl.handle.net/10203/79699 | - |
dc.description.abstract | Since pre-filtering removes camera noise and improves coding efficiency dramatically, its efficient implementation has been an important issue in video sequence coding. Based on the approximated generalized Wiener filtering and two-dimensional discrete cosine transform (DCT) factorization, this paper introduces a novel pre-filtering scheme that is performed inside a video encoder. The proposed pre-filtering is performed, by scaling the DCT coefficients of original image blocks for intra block coding and those of motion-compensated error blocks for inter block coding, respectively. Even though the pre-filtering operation is embedded in a video encoder, its additional computational complexity is marginal for given signal-to-noise ratio (SNR) estimates, and the overall architecture of the conventional video encoder is maintained. Notwithstanding its simplicity, the proposed pre-filtering scheme gives good filtering and coding performance for noisy video sequences. (C) 2003 Elsevier Science (USA). All rights reserved. | - |
dc.language | English | - |
dc.publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE | - |
dc.subject | FAST ALGORITHMS | - |
dc.subject | MOTION | - |
dc.subject | TRANSFORM | - |
dc.subject | IMAGES | - |
dc.title | Efficient block-based video encoder embedding a Wiener filter for noisy video sequences | - |
dc.type | Article | - |
dc.identifier.wosid | 000182138500002 | - |
dc.identifier.scopusid | 2-s2.0-0038343504 | - |
dc.type.rims | ART | - |
dc.citation.volume | 14 | - |
dc.citation.beginningpage | 22 | - |
dc.citation.endingpage | 40 | - |
dc.citation.publicationname | JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION | - |
dc.contributor.localauthor | Ra, Jong Beom | - |
dc.contributor.nonIdAuthor | Kim, SD | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | pre-filtering | - |
dc.subject.keywordAuthor | noise removal | - |
dc.subject.keywordAuthor | DCT-domain filtering | - |
dc.subject.keywordPlus | FAST ALGORITHMS | - |
dc.subject.keywordPlus | MOTION | - |
dc.subject.keywordPlus | TRANSFORM | - |
dc.subject.keywordPlus | IMAGES | - |
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