面向空间通信视频编码算法的业务流模型

256200811JournaloftheGraduateSchooloftheChineseAcademyofSciencesVol.25NovemberNo.620083(60573112)­E2mail:[e-mail]:100221175(2008)062083520831­1,21(1,100049;2,100049)(2008125;2008324)LiZ,ZhangC,YanFG.Atrafficmodelforspacecommunicationvideoalgorithm.JournaloftheGraduateSchooloftheCHineseAcademyofSciences,2008,25(6):835842Hadamard3D,.,,,,,.3D,,HadamardTP3931,,,.(ConsultativeCommitteeofSpaceDataSystems,CCSDS)(ImageDataCompression,IDC)[1],.[2],.,,.2:.,(ShortRangeDependence,SRD)(LongRangeDependence,LRD)[3].(DiscreteCosineTransform,DCT)MPEG21MPEG24,AR[4,5]hosking[6]FARIMA[7][8,9].AR,,;hoskingFARIMAAR,SRDLRD,HoskingFARIMA,Haar,,DCTMPEG21SRDLRD;[10]MPEG24,MPEG24,IBBPBB,HadamardIBBPBB,MPEG24SRDLRD;,(VariableBitRate,VBR)[11],[12].[13,14]VBR;,MPEG2FGS[15]MPEG24[16],CCSDSIDC.CCSDSIDC,,.,,;.2CCSDSIDC3DDCPAC1CCSDSIDCCCSDS2005IDC.,1.CCSDSIDC2IDC,,(Bitplane)(B7B0),2.,IDC,,;,,IDC,,IDC,;,(GroupofPictures,GOP),,.,.CCSDSIDC,,,,.,(3D,3Dimension),3D3D(3D)[17].3D[18],CCSDSIDC3.3D.,Harr,CCSDSIDC.CCSDSIDC,,.3D,,63825.3D,,.33D3HadamardHadamard3D,GOP,HadamardGOP,3D..;,3D.3113DGOP,GOPIM-1P,M=2,4,8,16,GOPM.GOP:M=2,IPIP;M=4,IPPPIPPP;M=8,IPPPPPPPIPPPPPPP;M=16,IPPPPPPPPPPPPPPPIPPPPPPPPPPPPPPP.N,kx(k),k=1,2,,N.x(k)NX=[x(1),x(2),,x(k),,x(N)]T,X,GOP.GOP,M,g(l),lGOP,l=1,2,,L,L=NPMô,GOP.g(l)gi(l),i=1,2,,M,GOP.g(l):^g(l)=HMg(l),(1),HMMHadamard.z(l)M-1,j(j=1,2,,M-1)zj(l),:y(l)=^g1(l),(2)zj(l)=^gj+1(l).(3)3DGOPIP,GOP,GOPHadamard.ARHadamard.ACM-1BD2.y(l)-E(y)=A[y(l-1)-E(y)]+Cy(l),(4)7386,:z(l)-E(z)=B[y(l-1)-E(y)]+Dz(l).(5)(4),E(y)y(l),y(l);(5),E(z)z(l),z(l),M-1.:E(y)=1LLl=1y(l),(6)E(zj)=1LLl=1zj(l),(7)Cy(0)=1LLl=1[y(l)-E(y)]2,(8)Czj(0)=1LLl=1[zj(l)-E(zj)]2,(9)Cy(1)=1L-1Ll=2[y(l)-E(y)][y(l-1)-E(y)],(10)Cyzj(0)=1LLl=1[y(l)-E(y)][zj(l)-E(zj)].(11)BDj(j=1,2,,M-1)B(j)D(j).:A=Cy(1)Cy(0),(12)C=(1-A2)Cy(0),(13)B(j)=Cyzj(0)Cy(0),(14)D(j)=Czj(0)-B2(j)Cy(0).(15)312HadamardAR,X=[x(1),x(2),,x(k),]T.:(1)y(0)E(y);(2)y(l);(3)ARHadamardy(l),(4):y(l)=A[y(l-1)-E(y)]+Cy(l)+E(y);(16)(4)M-1,M-1z(l);(5)ARHadamardz(l),(5):z(l)=B[y(l-1)-E(y)]+Dz(l)+E(z);(17)(6)y(l)z(l)M^g(l),Hadamard,^gi(l)=y(l),i=1;zj(l),i=j+1,(18),i=1,2,,M,j=1,2,,M-1;(7)^g(l)Hadamard,g(l),GOP;(8)GOP:X=[x(1),x(2),,x(k),]T.(19)4Pentium,Matlab711,283825.2:(Camera),10000,f=30Ps,CIF;FriendsSeason1-01(Friends),40252,f=30Ps,QCIF.GOP16,3D2Trace.411:,Trace,(ProbabilityDistributionFunction,PDF).(AutoCorrelationCoefficient,ACC),X(k),:X(k)=1N-kN-kn=1[x(n)-…X][x(n+k)-…X]S2X(20),…XX,S2XX,k=0,1,2,,N.45()67().4Camera5Friends6Camera7Friends,3D,(SRD)(LRD),,3D.412:3D,29386,:,,.4121189.Q2Q,,,,.,Hadamard,.412121011.8CameraQ2Q9FriendsQ2Q10Camera11Friends,3DSRDLRD,.413:,.(BLR,BitLossRate)[19].017110BLR1213.,,,.0482512CameraBLR13FriendsBLR5,3D,GOPHadamard.,,,.[1]CCSDS.Imagedatacompression,recommendedstandard.CCSDS122102B21,BlueBook.2005[2]ClareLP,GaoJL,JenningsEH,etal.Space2basedmulti2hopnetworking.ComputerNetworks,2005,47(5):701724[3]DoulamisND,DoulamisAD,KonstantoulakisGE,etal.EfficientmodelingofVBRMPEG21codedvideosources.IEEETransactionsonCircuitsandSystemsforVideoTechnology,2000,10(1):93112[4]MaglarisB,AnastassiouD,SenP,etal.Performancemodelsofstatisticalmultiplexinginpacketvideocommunications.IEEETransactionsonCommunications,198836(7):834844[5],,.VBRMPEG.:,,.2000().:,200114852[6]HuangC,DevetsikiotisM,LambadarisI,etal.Modelingandsimulationofself2similarvariablebitratecompressedvideo:Aunifiedapproach.ComputerCommunicationReview,1995,25(4):114125[7]LazaroO,GirmaD,DunlopJ.Astudyofvideosourcemodelingfor3Gmobilecommunicationsystems.In:InternationalConferenceon3GMobileCommunicationTechnologies(1st2000).3GMobileCommunicationTechnologies.LondonUK:InstitutionofElectricalEngineers,20001461465[8]MaS,JiC.Modelingvideotrafficusingwavelets.IEEECommunicationsLetters,1998,2(4):100103[9],,,.VBR.,2005,33(4):638642[10],,.MPEG24.,2004,25(2):18[11]FeldmannA,GilbertAC,WillingerW.Datanetworksascascades:InvestigatingthemultifractalnatureofinternetWANtraffic.ComputerCommunicationReview,1998,28(4):4255[12]KrishnaM,GradreV,DesaiU.Multiplicativemultifractalprocessbasedmodelingofbroadbandtrafficprocesses:variablebitratevideotraffic.In:Proceedingsofthe2002InternationalZurichSeminaronBroadbandCommunications.Zurich,Switzerland:IEEEPress,2002118211826[13],.VBR.,2007,44(1):9298[14]WangS,QiuZ.AnovelmultifractalmodelofMPEG24videotraffic.In:GuoJiaZiRanKeXueJiJinWeiYuanHui.ISCIT2005,Vol11Beijing,China:BeijingUniversityofPostsandTelecommunicationsPress,20051101105[15],,,.MPEG24FGS.,2006,23(12):148152[16]ZhouW,SarkarD,RamakrishnanS.TrafficmodelsforMPEG24spatialscalablevideo.In:ProceedingsofIEEEGlobalTelecommunicationsConference,2005(GLOBECOM05).SaintLouisMissouri,USA:IEEEPress,2005,1(28):2562601486,:[17].:[].:,,2007[18]LuoL,WuF,LiS,etal.Advancedmotionthreadingfor3Dwaveletvideocoding.SignalProcessing:ImageCommunication,2004,19(7):601616[19]HeymanDP.TheGBARsourcemodelforVBRvideoconferences.IEEEPACMTransactionsonNetworking,1997,5(4):554560AtrafficmodelforspacecommunicationvideoalgorithmLIZhe1ZHANGCan1,2YANFeng2Gang1(1SchoolofInformationScienceandEng