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dc.contributor.authorPITIE, FRANCOISen
dc.contributor.authorKOKARAM, ANILen
dc.date.accessioned2015-02-13T15:07:06Z
dc.date.available2015-02-13T15:07:06Z
dc.date.issued2014en
dc.date.submitted2014en
dc.identifier.citationGary Baugh, Anil Kokaram, François Pitié, Advanced video debanding, CVMP '14: Proceedings of the 11th European Conference on Visual Media Production, CVMP '14: Proceedings of the 11th European Conference on Visual Media Production, ACM, 2014, a7-en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/73201
dc.descriptionPUBLISHEDen
dc.description.abstractHigh efficiency video coding has made it possible to stream video over bandwidth constrained communication networks. Depending on bit rate requirements, a video encoder sacrifices some image de- tails which can then introduce visual artefacts. Due to aggressive encoding a contouring staircase artefact called banding can be ob- served in image regions with very low texture. This paper presents a solution for removing banding artefacts using image filtering and dithering techniques. A new banding index (BI) metric is also pre- sented for quantitatively measuring the amount of banding in an im- age. Using this BI metric, we assess how much banding YouTube video encoding introduces in a video test dataset. There is a de- banding filter in ffmpeg called gradfun . We compare the results of our debanding technique with those of gradfun on the YouTube test dataset.en
dc.format.extenta7en
dc.language.isoenen
dc.publisherACMen
dc.rightsYen
dc.subjectHigh efficiency video codingen
dc.subject.lcshHigh efficiency video codingen
dc.titleAdvanced video debandingen
dc.title.alternativeCVMP '14: Proceedings of the 11th European Conference on Visual Media Productionen
dc.title.alternativeCVMP '14: Proceedings of the 11th European Conference on Visual Media Productionen
dc.typeConference Paperen
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/akokaramen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/pitiefen
dc.identifier.rssinternalid100644en
dc.rights.ecaccessrightsopenAccess


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