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200711:100026788(2007)01201572061,1,2(11,710072;21,710064):ITS,.;;.,..:ITS;;;:TN919181:AATrafficImageCodeMethodbasedonMachineLearningParameterChoiceCAOWen2lun1,SHIZhong2ke1,FENGJian2hu2(11SchoolofAutomation,NorthwesternPolytechnicalUniversity,Xian710072,China;21CollegeofScience,ChanganUniversity,Xian710064,China)Abstract:CombinedimagecompressionwithtrafficimagetransmissioninITS,thispaperpresentsanewimagecompressionmethodofpolynomialapproachwhichbasedonmachinelearningparameterchoice.Wedefinedtwospeciesofindextomeasurethestabilityoftheimagescanningways.Wealsoresearchedhowtogettheparameterwhichisproducedbymachinelearning,andhowtousetheparametertomonotonizetheimagescanningdata.Moreover,wecompressedthescanneddatausingthepolynominalapproachmethod.Themostmeritofourmethodisfacilityandhighefficiency.Wehavegottengoodresultsaimedatthesmallcomplextrafficimage,especiallyinmiddleandlowsignal2to2noiseratio.Ourmethodalsocanbepopularizetoakindofimagewhichinterestareaislocatinginthecenteroftheimage.Keywords:ITS;imagescanning;imagecompression;machinelearning:2005211229:(60134010):(1980-),,,:;(1956-),,,,,,;(1960-),,,,,,0[1].ITS,,,.ITS(Intelligencetransportationsystem),ATIS(AdvancedTravelerInformationSystems).,,.21,GM(1,1),,.1993HuangHo2chaoWuJa2lingGM(1,1)[2],GM(1,1),,©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1,1),.1996,HuangYo2pingGM(1,1)[3].1998,Yen2TsengHsuJeromeYeh[4,5]GM(1,1),.(GDLQMSSMSISMSGMPFGMP),(QMSSMS),.,GM(1,1),,,.ITS.11,.,.x(0)n2:x(0)=x(0)(i,j),i=1,2,,n;j=1,2,,n.:x(1)=x(1)(k),k=1,2,,n2.(ik,jk),(i1,2,n;j1,2,,n)k.1111x(1)(k)x(1)(k-1):dis(k,k-1)=n2k=1[((ik-ik-1)2+(jk-jk-1))2],i1,2,,n;j1,2,,n.(1)..1122x(0)(i,j),x(1)(k),(k=1,2,,n2)x(0)(i,j)x(0)neighbor(i,j):x(0)(i-1,j-1),x(0)(i-1,j),x(0)(i-1,j+1),x(0)(i,j-1),x(0)(i,j+1),x(0)(i+1,j-1),x(0)(i+1,j),x(0)(i+1,j+1).mx(1)x(0)neighbor(i,j),x(0)(i,j)Local(i,j)=m,(2)nj=1ni=1Local(i,j).(3).,,,:(111)(112)Z(113)(114)Hilbert[68](115),1,1..,85%,[9]..2(88)85120071©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1,1).11(200412715262)ZHilbert44614807318730418990318730318730181013208820114947193731015830719373719373122292.,.3x(0),x(1):x(0)=(x(0)(1),x(0)(2),,x(0)(n));x(1)=(x(1)(1),x(1)(2),,x(1)(n)).x(1)(0)=0;x(0)(0)=0.x(0)(k)+x(1)(k-l)=x(1)(k),k=1,2,,n.:x(1)x(0),:x(0)x(1).:1),;:.2),..:,,,.3)[10](),..:,,,.4)GM(1,1)[11],23.:GM(1,1),.,3..,1.?.:1),,original;2):NomaxOneaveTwimin(,9511©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.).:originalNomax();NomaxoriginalOneave();OneaveoriginalTwimin();Twiminoriginal.original.23),.123(3)123.3,;3,1.original,.4),,,.2.,.31y=f(x)(xi,yi),(i=1,2,,n),,xi=i,yi=x(1)(i)=(x(1)(1),x(1)(2),,x(1)(n)).mPm(x)=a0+a1x++xmxm,ri=Pm(xi)-yi,i=1,2,,n,06120071©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=ni=0r2i=ni=0[Pm(xi)-yi]2.,R,5R5a0=05R5a1=05R5am=0.m+1a0(n+1)+a1ni=0xi++amni=0xmi=ni=0yia0ni=0xi+a1ni=0x2i++amni=0xm+1i=ni=0xiyia0ni=0xmi+a1ni=0xm+1i++amni=0x2mi=ni=0xmiyi.a0,a1,,am,mPm(x).mPm(x)..4(PSNR)(CR).AMDAthlon1800+,256MRamPC,Win2000,Vc++610.20041271526-,12,3.22ZHilbertJpegPSNR(db)201754982201742145201351247201143594191902141281202885CR4181416941814168417171803,,.:,,:HilbertZ.,(,,1611©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.)..Hilbert.2..5,.,,..:[1]YinHB,XuJB.Roadtransportationcontroltechnique[J].TheSouthofChinaScienceandEngineeringUniversityPublishingHouse,2000,3-4.[2]HuangHC,WuJL.GreysystemtheoryonimageprocessingandlosslessdatacompressionforHD2media[J].JournalofGreySystemTheory&Practice,1993,2:9-15.[3],.GMHilbert[J].,2002,23(11).CaoK,FengYC.AimagecompressionmethedbasedonGMandHilbertspace2fillingcurve[J].Mini2MicroSystem,2002,23(11).[4]Yen2TsengHsu,JeromeYeh.AnovellosslessimagecompressionbasedonGM[J].JournalofGreySystem,2000,3:263-274.[5]Yen2TsengHsu,JeromeYeh.Grey2basedimagecompression[J].JournalofGreySystem,1998:105-120.[6]JacobsEW,FisherY,BossRD.Imagecompression:Astudyoftheiteratedtransformmethod[J].SignalProceeding,1992,29:251-263.[7]FisherY.Fractalimagecompression[J].Fractals,1994,2(3):321-329.[8],,,.Hilbert[J].,2002,7(6).LiuXD,ZhuZL,WangGX,etal.MeasuringtheundulationoftheimagescanningandafastHilbertscanningmatrixconstructingalgorithm[J].JourmalofImageandGraphics,2002,7(6).[9]HuangW,GongPZ.Themethodsofcodinginimagecompression[J].ApplicationResearchofComputers,2003,8.[10]HuangYP.Practicalconsiderationforgreymodelinganditsapplicationtoimageprocessing[J].TheJournalofGreySystem,1996,3:217-234.[11]HuangYP,ChuHC,HsiaKH.Dynamicgreymodeling:Theoryandapplication[C]PPTheFirstNationalSymposiumonGreySystemTheoryandItsApplication,Taiwan,1996:47-56.26120071©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.