Subjective Quality Assessment of the Impact of Buffer Size in Fine-Grain Parallel Video Encoding

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dc.contributor.authorMontero, Pablo
dc.contributor.authorPolak, Ladislav
dc.contributor.authorTaibo, Javier
dc.contributor.authorKratochvil, Tomas
dc.coverage.issue4cs
dc.coverage.volume21cs
dc.date.accessioned2015-01-26T10:06:04Z
dc.date.available2015-01-26T10:06:04Z
dc.date.issued2012-12cs
dc.description.abstractFine-Grain parallelism is essential for real-time video encoding performance. This usually implies setting a fixed buffer size for each encoded block. The choice of this parameter is critical for both performance and hardware cost. In this paper we analyze the impact of buffer size on image subjective quality, and its relation with other encoding parameters. We explore the consequences on visual quality, when minimizing buffer size to the point of causing the discard of quantized coefficients for highest frequencies. Finally, we propose some guidelines for the choice of buffer size, that has proven to be heavily dependent, in addition to other parameters, on the type of sequence being encoded. These guidelines are useful for the design of efficient realtime encoders, both hardware and software.en
dc.formattextcs
dc.format.extent1226-1235cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2012, vol. 21, č. 4, s. 1226-1235. ISSN 1210-2512cs
dc.identifier.issn1210-2512cs
dc.identifier.urihttp://hdl.handle.net/11012/37233
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2012/12_04_1226_1235.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectParallel MPEG-2en
dc.subjectITU-R BT.500en
dc.subjectsubjective testen
dc.subjectvideo qualityen
dc.subjectACRen
dc.subjectMOSen
dc.subjectPSNR.en
dc.titleSubjective Quality Assessment of the Impact of Buffer Size in Fine-Grain Parallel Video Encodingen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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