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3(,300072),,,,,,TP391141A100125515(2008)0521217205ThePresentStateandProgressofResearchesonGaitRecognitionXueZhaojunJinJingnaMingDongWanBaikun(CollegeofPrecisionInstrumentandOpto2ElectronicsEngineering,TianjinUniversity,Tianjin300072,China)AbstractRecognitionbygaitisanewfieldforthebiometricrecognitiontechnology.Itsaimistorecognizepeopleanddetectphysiological,pathologicalandmentalcharactersbytheirwalkstyle.Theuseofgaitasabiometricforhumanidentificationispromising.Thetechniqueofgaitrecognition,asanattractiveresearchareaofbiomedicalinformationde2tection,attractsmoreandmoreattention.Inthispaperisintroducedasurveyofthebasictheory,existinggaitrecognitionmethodsandpotentialprospects.Thelatestprogressandkeyfactorsofresearchdifficultiesareanalyzed,andfuturere2searchesareenvisaged.KeywordsBiometricrecognitionGaitrecognitionFeatureextraction1,();,(),,,1015,,[1],,,3(60501005,60471028);(863)(2007AA04Z236);(07ZCKFSF01300);(20080430732)E2mail:richardming@tju.edu.cn,,,[2],,,,,,,,,[3],,,:,255200810JournalofBiomedicalEngineeringVol.25No.5October2008,;,,(500);,,,,/,,,,,2:24,,,,,,(),,()()(EMG),,:,:,1,,,:,,,,,,()[4],,,,1Fig1Sketchmapofgaitrecognitionprocessing,,,Cu2nado,NashLee[5]Lee,7,,[6]3,(Soton)(MIT)-3.12090812125,NiyogiAdelson1996,MuraseSakai1998,LittleBoyd2000,Shutler[7]2001,Hayfron2Acquah[8]2002,Ben2Ab2delkader(Self2similarityplots)[9],-Collins[10]2003,Foster[11],Begg[12],,,,2001,,,,[13],[14][15]3.2,,,,,,,,(DARPA)HID(HumanI2dentificationataDistance),,911,,,,,,5,,,,,,,,[16],,,,,,,,,,,[17]()[18]4,10,,,91215,,80%90%,,,,,,,,,,[18]4.14.1.1,,,,,4.1.2,,(Nearest2neighbor,NN)(Ar2tificialneuralnetwork,ANN)(Hiddenmarkovmodel,HMM),,,:,,,,,,[19],,,[20,21],,;,,,4.1.3Laszlo,MurrayvonTscharner[22],,,,,,,,,4.2,,,3D,,,,:,,;,,;,,,,,,,,[23]0221255,,,,,,,,,,;,1Ortega2GarciaJ,BigunJ,ReynoldsD,etal.Authenticationgetspersonalwithbiometrics.IEEESignalProcessingMagazine,2004;21(2)502JainAK,RossA,PrabhakarS.Anintroductiontobiometricrecognition.IEEETransactionsonCircuttsandSystemsforVideoTechnology,2004;14(1)43NixonMS,CarterJN,CunadoD,etal.Automaticgaitrecogni2tion[A].In:Biometrics:PersonalIdentificationinNetworkedSo2ciety[M],Netherlands:KluwerAcademicPublishers,199923122504VeresGV,GordonL,CarterJN,etal.Whatimageinformationisimportantinsilhouette2basedgaitrecognition?In:ProceedingsofIEEEComputerSocietyConferenceonComputerVisionandPatternRecogntion,WashingtonD.C,USA,2004;277627825LeeL,GrimsonW.Gaitanalysisforrecognitionandclassification[A].In:ProceedingsofIEEEConferenceonFaceandGestureRecognition02[C],2002552626WaggDK,NixonMS.Automatedmarkerlessextractionofwalk2ingpeopleusingdeformablecontourmodels.ComputerAnimationandVirtualWorlds,2004;15(3)3997ShutlerJ,NixonM,HarrisC.Statisticalgaitrecognitionviatem2poralmoments.In:ProcIEEESouthwestSymposiumonImageAnalysisandInterpretation,Austin,Texas,200029122958Hayfron2AcquahJ,NixonM,CarterJ.Automaticgaitrecogni2tionbysymmetryanalysis.In:ProcIntConAudio2Video2BasedBiometricPersonAuthentication,200127222779Ben2AbdelkaderC,CutlerR,DavisL.Motion2basedrecognitionofpeopleineigengaitspace.In:ProceedingsoftheFifthIEEEIn2ternationalConferenceonAutomaticFaceandGestureRecogni2tion,2002254225910CollinsRT,CrossP,ShiJB.Silhouette2basedhumanidentifica2tionfrombodyshapeandgait[A].In:ProceedingsofFifthIEEEInternationalConferenceonAutomaticFaceandGestureRecogni2tion[C],WashingtonDC,USA,2002351235611FosterJP,NixonMS,Prugel2BennetA.Automaticgaitrecogni2tionusingareabasedmetrics.PatternRecognitionLetters,2003;24248912BeggRK,PalaniswamiM,OwenB.Supportvectormachinesforautomatedgaitclassification.IEEETransactionsonBio2medicalEngineering,2005;52(5)82813WangL,TanTN,HuWM,etal.Automaticgaitrecognitionbasedonstatisticalshapeanalysis.IEEETransactiononImageProcessing,2003;12(9)112014HanHZ,LiB,WangZL,etal.GaitrecognitionbasedonFouri2erdescriptors.ComputerEngineering,2005;31(2)48[,,..,2005;31(2)48]15TianGJ,ZhaoRC.GaitrecognitionbasedonHMM.JournalofImageandGraphics,2006;11(6)867[,..,2006;11(6)867]16HuXY,YunXP.ClinicalapplicationofGaitanalysis.ChinJRe2habilTheoryPractice,2003;9(11)677[,..,2003,9(11)677]17KaleA,RajagopalanN,CuntoorN,etal.GaitbasedrecognitionofhumansusingcontinuousHMMs[A].In:ProceedingofFifthIEEEInternationalConferenceonAutomaticFaceandGestureRecognition[C],WashingtonDC,USA,2002321232618VoglerC,SunH,MetaxasD.Aframeworkformotionrecogni2tionwithapplicationstoAmericansignlanguageandgaitrecogni2tion[A].In:ProceedingsofWorkshoponHumanMotion[C],AustinTexas,USA,20003323819ZhangXG.Statisticallearningtheoryandsupportvectorma2chines.ActaAutomaticaSinica,2000;26(1)32[..,2000;26(1)32]20BhanuB,HanJ.Bayesian2basedperformancepredictionforgaitrecognition.In:IEEEWorkshoponMotionandVideoComput2ing,Orlando,Florida,2002145215021Ben2AbdelkaderC,CutlerR,DavisL.Personidentificationusingautomaticheightandstrideestimation.In:16thInternationalConferenceonPatternRecognition,Quebec,Quebec,2002;377238022vonTscharnerV,GoepfertB.Genderdependentemgsofrunnersresolvedbytime/frequencyandprincipalpatternanalysis.JournalofElectromyographyandKinesiology,2003;1325323Bh