Face_Recognition.pdf

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1、FaceRecognitionFaceRecognition––AVisionApplicationAVisionApplication人脸识别人脸识别————一种视觉应用一种视觉应用周冕IEEEmemberPhDUniversityofReading,UKMScUniversityofLondon,UKOutline主要内容1.Introduction简介2.SystemArchitecture系统的基本构架3.FaceDetection人脸检测算法与系统4.Algorithm算法5.ExistingSystemsandProducts现存的识别系统和产品6.Futu

2、re未来及发展方向1.Introduction简介1.Introduction
Biometrics生物识别技术Face人脸Fingerprint指纹Hand&Vein手型、手纹和血管Signature签字Iris&Retinal虹膜Voice声音和视网膜1.Introduction
Biometrics生物识别技术1.Introduction
Biometrics生物识别技术1.Introduction
Face人脸BeintegraltoHumanInteraction人脸对于人际互动是不可或缺的一部分Manualfacialrecognitionisalrea

3、dyusedineverydayauthenticationapplications手动的人脸识别已经用在了日常的身份验证上。IDCardSystems(passport,healthcard,anddriver’slicense)身份系统（（（护照（护照、、、医保卡和护照、医保卡和护照）））Bookingstations预订Surveillanceoperation监控1.Introduction
FaceRecognition（FR））人脸识别）人脸识别Themostcommonbiometriccharacteristicusedbyhumans人脸是人脑

4、用于识别他人最常见的特征Non-intrusive(Easytoacquire)非侵入式（（容易获取（容易获取）Personalprivacyissue个人隐私的问题1.Introduction
FR:computervision(CV)&patternrecognition(PR)人脸识别：：计算机视觉和模式：计算机视觉和模式识别的组合ClassicstatisticPR经典基于统计的模式识别1.Introduction
TwomodesFaceVerification人脸确认1.Introduction
TwomodesFaceIdentification

5、人脸鉴定FaceVerificationvs.FaceIdentificationFaceVerificationvs.FaceIdentification
Objectives目的Faceverificationistoverifyagivenfacewiththeclaimedidentity.Faceidentificationistoidentifyagivenfacefromapoolofpeople’sfaces.
Subjects对象Afaceverificationsystemdealswithtwosubjects:clientandimpost

6、orAfaceidentitysystemprocessesmultiplesubjects.
Classification分类方法Faceverificationcanbeconsideredasatwo-classproblem.Faceidentificationisconsideredasamulti-class(n-class,n>2)problem1.Introduction
ChallengesofFR人脸识别的挑战Physicalappearance外观FacesdoesnotsharethesamephysicalfeaturesAcqui

7、sitiongeometry获取角度HowaretheimagesobtainedImagingconditions图像条件Inwhatenvironmentisthefaceimaged?Compressionartifacts压缩损失“Features”appear/disappearduetocompression1.Introduction
ApplicationsofFR人脸识别的应用Documentcontrol(digitalchipinpassport,drivers’licenses)护照、、驾照、驾照Tr