Rate-distortion optimized layered coding of high dynamic range videos
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Chul | - |
dc.contributor.author | Kim, Chang-Su | - |
dc.date.accessioned | 2021-09-06T17:14:15Z | - |
dc.date.available | 2021-09-06T17:14:15Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2012-08 | - |
dc.identifier.issn | 1047-3203 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/107804 | - |
dc.description.abstract | An efficient algorithm to compress high dynamic range (HDR) videos into layered bitstreams is proposed in this work. First, we separate an HDR video sequence into a tone-mapped low dynamic range (LDR) sequence and a ratio sequence, which represents ratios between HDR and LDR pixel values. Then, we encode the LDR and ratio sequences to maximize the rate-distortion (R-D) performance by extending the standard H.264/AVC codec. Specifically, we estimate the distortion of the HDR sequence from those of the LDR sequence and the ratio sequence, and then allocate a limited bit budget to the LDR sequence and the ratio sequence efficiently to maximize the qualities of both LDR and HDR sequences. Conventional LDR devices use only the LDR stream, whereas HDR devices reconstruct the HDR video from the LDR and ratio streams. Simulation results show that the proposed algorithm provides significantly better R-D performance than conventional HDR video coding techniques. (C) 2012 Elsevier Inc. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE | - |
dc.subject | BIT ALLOCATION | - |
dc.subject | CODER | - |
dc.title | Rate-distortion optimized layered coding of high dynamic range videos | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Chang-Su | - |
dc.identifier.doi | 10.1016/j.jvcir.2012.05.009 | - |
dc.identifier.scopusid | 2-s2.0-84862734877 | - |
dc.identifier.wosid | 000307134900008 | - |
dc.identifier.bibliographicCitation | JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION, v.23, no.6, pp.908 - 923 | - |
dc.relation.isPartOf | JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION | - |
dc.citation.title | JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION | - |
dc.citation.volume | 23 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 908 | - |
dc.citation.endPage | 923 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Computer Science | - |
dc.relation.journalWebOfScienceCategory | Computer Science, Information Systems | - |
dc.relation.journalWebOfScienceCategory | Computer Science, Software Engineering | - |
dc.subject.keywordPlus | BIT ALLOCATION | - |
dc.subject.keywordPlus | CODER | - |
dc.subject.keywordAuthor | High dynamic range video | - |
dc.subject.keywordAuthor | Video coding | - |
dc.subject.keywordAuthor | Rate-distortion optimization | - |
dc.subject.keywordAuthor | Layered coding | - |
dc.subject.keywordAuthor | H.264/AVC | - |
dc.subject.keywordAuthor | Tone mapping | - |
dc.subject.keywordAuthor | Backward compatibility | - |
dc.subject.keywordAuthor | Human visual system | - |
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