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1、InternationalJournalofImageandGraphicsVol.3,No.3(2003)461-479©WorldScientificPublishingCompanyASYSTEMFORHUMANFACEANDFACIALFEATURELOCATIONJUNMIAO,HONGLIU,WENGAO,HONGMINGZHANG,GANGDENG,XILINCHENICT-YCNCFRJDL,InstituteofComputingTechnology,ChineseAcademyofSciences,Beijing100080,ChinaEmail:{jmiao,
2、hliu,wgao,hmzhang,gdeng,xlchen}@ict.ac.cnThispaperpresentsanimplementationofasystemdesignedforlocationofhumanfacesandfacialfeaturessuchaspupils,eyes,noseandmouth.Thekernelofthesystemisanintegrationofseveralalgorithms,suchashumanfacecenter-of-gravitytemplate,illuminationcompensation,andsoon.Afa
3、lse-faceremovalalgorithmisproposedinthispaperespeciallyforthedistinguishingofcartoonfacesfromtruefaces.Thetestingexperimentsofthesystemshowquitegoodresults,theaveragedetectionaccuracyratesforfacedetectionandfacialfeaturelocationare97.8%and87.5%respectively.Keywords:facecenter-of-gravitytemplat
4、e,facedetection,facialfeaturelocation1.IntroductionHumanfacedetectionandfacialfeaturelocation,asspecificissuesofpatternrecognition,aresignificantinvariousapplicationssuchashumanidentification,faceretrieval,virtualhumanfacesynthesis,andmodelbasedMPEG-4facecoding.Alotofworkhasbeendoneonthisissue
5、.Proposedtechniquesincludemulti-resolution1,234analysis,fixedtemplatematching,deformabletemplatematching,center-of-gravity567templatematching,fuzzytheory,principlecomponentanalysis“eigenface”or89,10,29,3011“eigenpicture”,neuralnetwork,supportvectormachine,andusageofmultiple12,13informationincl
6、udingcolor,soundormotion.Quiteafewtechniquesarerelatedto1415facialfeatureextraction,suchasB-splines,adaptiveHoughtransform,cost1617,181920minimization,deformabletemplate,region-basedtemplate,geometricalmodel,3132linear/nonlinearfilter,activeappearancemodelsandsomeapproachesofcombined33,34sever
7、alclassicaltechniques.Faceandfacialfeaturelocationareindispensablestepsforfaceanalysis.Afast,accurateandefficientsystemforfaceandfacialfeaturedetectionishelpfulfortheimplementationofpracticalbiometricsystemsforhumanfaceanalysis.Foraprac
