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Standard-Compliant Low-Pass Temporal Filter to Reduce the Perceived Flicker Artifact

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dc.affiliation.dptoUC3M. Departamento de Teoría de la Señal y Comunicacioneses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Procesado Multimediaes
dc.contributor.authorJiménez Moreno, Amayaes
dc.contributor.authorMartínez Enríquez, Eduardoes
dc.contributor.authorKumar, Vinay
dc.contributor.authorDíaz de María, Fernandoes
dc.date.accessioned2015-07-17T09:56:04Z
dc.date.available2015-07-17T09:56:04Z
dc.date.issued2014-11
dc.description.abstractFlicker is a common video-compression-related temporal artifact. It occurs when co-located regions of consecutive frames are not encoded in a consistent manner, especially when Intra frames are periodically inserted at low and medium bit rates. In this paper we propose a flicker reduction method which aims to make the luminance changes between pixels in the same area of consecutive frames less noticeable. To this end, a temporal low-pass filtering is proposed that smooths these luminance changes on a block-by-block basis. The proposed method has some advantages compared to another state-of-the-art methods. It has been designed to be compliant with conventional video coding standards, i.e., to generate a bitstream that is decodable by any standard decoder implementation. The filter strength is estimated on-the-fly to limit the PSNR loss and thus the appearance of a noticeable blurring effect. The proposed method has been implemented on the H. 264/AVC reference software and thoroughly assessed in comparison to a couple of state-of-the-art methods. The flicker reduction achieved by the proposed method (calculated using an objective measurement) is notably higher than that of compared methods: 18.78% versus 5.32% and 31.96% versus 8.34%, in exchange of some slight losses in terms of coding efficiency. In terms of subjective quality, the proposed method is perceived more than two times better than the compared methods.en
dc.description.sponsorshipThis work has been partially supported by the National Grant TEC2011-26807 of the Spanish Ministry of Science and Innovation.en
dc.description.statusPublicadoes
dc.format.extent12
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationIEEE Transactions on Multimedia (2014). 16(7), 1863-1873.en
dc.identifier.doi10.1109/TMM.2014.2347257
dc.identifier.issn1520-9210
dc.identifier.publicationfirstpage1863
dc.identifier.publicationissue7
dc.identifier.publicationlastpage1873
dc.identifier.publicationtitleIEEE transactions on multimediaen
dc.identifier.publicationvolume16
dc.identifier.urihttps://hdl.handle.net/10016/21445
dc.identifier.uxxiAR/0000015863
dc.language.isoeng
dc.publisherIEEEen
dc.relation.projectIDGobierno de España. TEC2011-26807es
dc.relation.publisherversionhttp://dx.doi.org/10.1109/TMM.2014.2347257
dc.rights© 2014 IEEE.es
dc.rights.accessRightsopen accessen
dc.subject.ecienciaTelecomunicacioneses
dc.subject.otherFlicker artifacten
dc.subject.otherFlicker reductionen
dc.subject.otherH.264/AVCen
dc.subject.otherLow-pass temporal filteringen
dc.subject.otherMotion-guided temporal filteringen
dc.subject.otherOn-the-fly filter strength controlen
dc.subject.otherStandard complianten
dc.titleStandard-Compliant Low-Pass Temporal Filter to Reduce the Perceived Flicker Artifacten
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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