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1、基于JND的立体感知视频编码LeiZhang,QiangPeng,Qiong-HuaWang,andXiaoWu,Member,IEEEAbstract—Stereoscopicvideocodingisakeytechnologyforthedevelopmentofthree-dimensionaltelevision(3DTV).Nonetheless,thetaskremainshighlychallengingowingtothelargeamountof3DTV.Traditionalstereoscopicvideocodingisfoundtobe
2、ineffectiveinreducingtheunnecessarystereoscopicperceptualredundancy.Thusbettercompressionefficiencyishighlydesiredinstereoscopicvideocoding.Inthispaper,weproposeafoveationweightmodelbasedonauto-stereoscopicdisplay,andincorporateitintoastereoscopicjust-noticeable-distortion(JND)modelto
3、givemoreaccurateestimationofthestereoscopicperceptualeffect.Inordertoutilizethismodeltoimprovethestereoscopicvideocodingefficiency,wepresentablock-adaptiveresiduepre-processingmethodbasedonstereoscopicJNDmodel.Extensiveexperimentresultsdemonstratethattheproposedschemecanefficientlyred
4、ucetheunnecessaryperceptualredundancywithoutvisualqualitydegradation.IndexTerms—Just-noticeable-distortion(JND),perceptualvideocoding(PVC),stereoscopic摘要：立体视频编码是3DTV发展中的一项关键技术。然而，这项工程巨大的挑战是3DTV庞大的数据量。传统的立体视频编码在减少不必要的立体感知冗余方面效率低下。因此立体视频编码迫切需要更加高的压缩效率。本文提出一种基于自动立体显示的中心凹权重模型，将其结合到一个立体JND
5、模型中，更准确地估计立体感知效应。为了利用这个模型提高立体视频编码效率，我们给出基于立体JND模型的块自适应残差预处理方法。大量的实验证明所提出的方案可以在不降低视觉质量的同时有效地减少不必要的感知冗余。1.IntroduceExtendingvisualsensationtothethirddimensionhasbeeninvestigatedoverdecades.Stereoscopicvideocanprovideusersasenseofdepthperceptualbypresentapairofstereoscopicimagestoaviewer
6、’sleftandrighteyes.Itcangiveusersvividinformationonthescenestructure.Withthedevelopmentofthree-dimensionaltelevision(3DTV),stereoscopicvideocodingisdrawingmoreandmoreattention.Comparedtomono-videosystems,thestereoscopicvideosystemsrequiredoublebandwidth.Thus,anefficientcodingschemeisn
7、ecessaryfortransmittingstereoscopicvideos.Recently,severalstudiesonstereoscopicvideocodinghavebeenperformedtoimprovethecodingefficiency,whichtakeintoaccountthestatisticalpropertiesamonginter-views.Nevertheless,thestereoscopicvisualperceptualfeaturesareusuallyneglected,sincetraditional
8、video
