MPEG-4FRVideoCodingISEPMaria TrocanSignal, Image&Telecommunications Dept
MPEG-4 Video Coding Maria Trocan ISEP Signal, Image & Telecommunications Dept
What's MPEG ?ISO,IECOrganizationsIsO-IntemationalSC24StandardsComputergraphicsandOrganizationimageprocessingWG1Coding of still picturesGKSPHIGS,CGM.VRML,X3DJPEGJTC1Over244technicalcommitteesSC29WG11Codingofaudio,pictureCoding of moving picturesmultimedia and hypermediaand audioIEC-InternationalMPEGElectrotechnicalCommission/SO/IECJTC1/SC29/WG11=MPEG
ISO - International Standards Organization GKS, PHIGS, CGM, VRML, X3D SC24 Computer graphics and image processing SC29 Coding of audio, picture, multimedia and hypermedia JPEG WG1 Coding of still pictures WG11 Coding of moving pictures and audio MPEG ISO, IEC Organizations What’s MPEG ? ISO/IEC JTC1/SC29/WG11 = MPEG IEC - International Electrotechnical Commission JTC1 Over 244 technical committees
What's MPEG-4 ?TheMPEGfamilyMPEGMPEG-21ISO/IEC2100002MPEG-7Multimedia terminalISO/IEC1593801MPEG-4specificationContentdescriptionISO/IEC1449699MPEG-2lultimediadatabaseInteractive TVISO/IEC1381894searchesWebapplicationsMPEG-1DVDS2D/3DapplicationsISO/IEC1117292Digital BroadcastsRichMediaCD-Rommovies(cable/sat)Movie trailers
The MPEG family MPEG MPEG-1 ISO/IEC 11172 ‘92 CD-Rom movies Movie trailers. MPEG-2 ISO/IEC 13818 ‘94 DVDs Digital Broadcasts (cable/sat) MPEG-4 ISO/IEC 14496 ‘99 Interactive TV Web applications 2D/3D applications Rich Media MPEG-7 ISO/IEC 15938 ‘01 Content description Multimedia database searches MPEG-21 ISO/IEC 21000 ‘02 Multimedia terminal specification What’s MPEG-4 ?
MPEG-44CharacteristicsMPEG-4ObjectsNatural-still images,audio,2D/3DvideoSynthetics-audio,objects,2D/3DscenesCompressionCompression口MPEG-4ObjectiveComprressionTechnological supportforobjectcompressionandtransmission
MPEG-4 Objects Natural – still images, audio, 2D/3D video MPEG-4 Objective Technological support for object compression and transmission Synthetics - audio, objects, 2D/3D scenes Compression Compression Compression MPEG-4 Characteristics
MPEG-44CharacteristicsMedia compositionInteractive Scene DescriptionSceneSceneDescriptionStreamlayerObjectDescriptionObjectDescriptorStreamlayerMPEG-4VisualStreamDstreamVisualStream(Multi)MediaLayerVisualStreamAudioStream
Object Descriptor Stream Object Description layer Media composition Interactive Scene Description MPEG-4 stream Visual Stream Visual Stream Visual Stream Audio Stream (Multi) Media Layer Scene Description Stream Scene layer MPEG-4 Characteristics