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1、560IEEETRANSACTIONSONCIRCUITSANDSYSTEMSFORVIDEOTECHNOLOGY,VOL.13,NO.7,JULY2003OverviewoftheH.264/AVCVideoCodingStandardThomasWiegand,GaryJ.Sullivan,SeniorMember,IEEE,GisleBjøntegaard,andAjayLuthra,SeniorMember,IEEEAbstract—H.264/AVCisnewestvideocodingstandardoftheITU-TVideoCodingExpertsGroup
2、andtheISO/IECMovingPictureExpertsGroup.ThemaingoalsoftheH.264/AVCstan-dardizationefforthavebeenenhancedcompressionperformanceandprovisionofa“network-friendly”videorepresentationaddressing“conversational”(videotelephony)and“noncon-versational”(storage,broadcast,orstreaming)applications.Fig.1.
3、Scopeofvideocodingstandardization.H.264/AVChasachievedasignificantimprovementinrate-distor-tionefficiencyrelativetoexistingstandards.ThisarticleprovidesanoverviewofthetechnicalfeaturesofH.264/AVC,describesandhasdiversifiedfromISDNandT1/E1servicetoembraceprofilesandapplicationsforthestandard,
4、andoutlinesthehistoryPSTN,mobilewirelessnetworks,andLAN/Internetnetworkofthestandardizationprocess.delivery.Throughoutthisevolution,continuedeffortshaveIndexTerms—AVC,H.263,H.264,JVT,MPEG-2,MPEG-4,beenmadetomaximizecodingefficiencywhiledealingwithstandards,video.thediversificationofnetworkty
5、pesandtheircharacteristicformattingandloss/errorrobustnessrequirements.RecentlytheMPEG-4Visual(MPEG-4part2)standard[5]I.INTRODUCTIONhasalsobeguntoemergeinuseinsomeapplicationdomainsof.264/AVCisthenewestinternationalvideocodingstan-thepriorcodingstandards.IthasprovidedvideoshapecodingHdard[1]
6、.Bythetimeofthispublication,itisexpectedtocapability,andhassimilarlyworkedtowardbroadeningthehavebeenapprovedbyITU-TasRecommendationH.264andrangeofenvironmentsfordigitalvideouse.byISO/IECasInternationalStandard14496–10(MPEG-4partInearly1998,theVideoCodingExpertsGroup(VCEG)10)AdvancedVideoCod
7、ing(AVC).ITU-TSG16Q.6issuedacallforproposalsonaprojectcalledTheMPEG-2videocodingstandard(alsoknownasITU-TH.26L,withthetargettodoublethecodingefficiency(whichH.262)[2],whichwasdevelopedabouttenyearsagoprimarilymeanshalvingthebitratenecessaryforagive
