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ID:41220538
大小:4.05 MB
页数:12页
时间:2019-08-19
《Robust Facial Component Detection for Face Alignment Applications》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、RobustFacialComponentDetectionforFaceAlignmentApplicationsMartinUrschler1,MarkusStorer1,HorstBischof1,JosefA.Birchbauer21InstituteforComputerGraphicsandVisionGrazUniversityofTechnology,Austriafurschler,storer,bischofg@icg.tugraz.at2SiemensBiometricsCenterSie
2、mensITSolutionsandServices,SiemensAustriajosef-alois.birchbauer@siemens.comAbstractBiometricapplicationslikefacerecognition/verificationareanimportanttopicincomputervision,bothforresearchandcommercialsystems.Unfortunately,stateoftheartfacerecognitionsystemsar
3、enotabletoworkwitharbitraryinputimagestakenunderdifferentimagingconditionsorshowingocclusionsand/orvariationsinexpressionorpose.Tosupportfacerecognitiononehastoperformafaceimagealignment(normalization)stepthattakesocclusions/variationsintoaccount.Inthisworkw
4、epresentarobustfacenormalizationalgorithmsuitableforarbitraryinputimagescontainingaface.Thealgorithmisbasedondetectingfaceandfacialcomponentcandidatesandrobustlyvotingforthebestfaceandeyes.Ourrestrictionsareacertainposerange(frontaltohalfprofile)andsuit-ablei
5、lluminationconditions.Ouralgorithmisdesignedtodealwithocclusionsanditsperformanceisshownonthreepubliclyavailableimagedatabases.1IntroductionFacerecognitionisanimportantbiometricapplicationwhichisreflectedintherelevanceoffacialim-ageanalysisasaresearchtopicinc
6、omputervision.Thereisahighinterestinbiometricsduetoalargenumberofpotentialcommercialandlawenforcementapplications(e.g.,biometricauthenticationorsurveillance)requiringrobustandhighlyaccuraterecognitionofbiometricfeatureslikefingerprints,irisortheface.Thebenefit
7、offacesinthiscontextisthelackofnecessarycooperationand/orknowl-edgeofthepersonasopposedtotheotherbiometriccues.Thistopichasreceivedsignificantresearchattentionoverthelasttwodecades[23]andhasalsoledtocommercialsystems[16].Wearespecificallyinterestedinanalyzingf
8、acialportraitandnear-portraitimagesinthecontextoftheInternationalCivilAviationOrganization(ICAO)standard[9]formachinereadabletraveldoc-uments(MRTDs).Themainintentionofthisstandardistodefinehowarb
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