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ID:36455724
大小:2.51 MB
页数:72页
时间:2019-05-10
《基于弹性模板匹配的人脸识别》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、北京工业大学硕士学位论文基于弹性模板匹配的人脸识别姓名:潘峰申请学位级别:硕士专业:计算机应用技术指导教师:苏开娜20040501AbstractFacerecognitioninoneofmostchallengingproblemsinthefieldsofpatternreeognitionandmachinevision.Ithasawiderangeofpotentialapplicationintheareasofpublicsecurity,identificationofcertificate,entrancecontr
2、olandvideosurveillance.Thispaperisastudyoftherecognitionofstarichumanfaceimages.Firstly,thesystemoffacerecognitionandfacialcognitivemodelsandrulesareilluminated.Secondly,themainmethodsofhumanfacerecognitionarestudiedparticularly.Speciallythemethodsofdyn锄icslinkmatchingan
3、delastictemplatematchingarestudied.Intherealizationofelastictemplatematching,theimprovementofthismethodispresented:(1)Intheprocessoffaceimage,thetraditionalmethodadoptstheconvolutionoffaceimageandafamilyofGaborkernels.ThoughFFTisused,thespeedoftheprocessislow.InthepaperD
4、aubechieswaveletreplaceGabor.Thewaveletdecomposeoffaceimageisrealizedbyshiftscheme,sothespeedisimproved.(2)Intheexpressionoffacecharacteristic,thepaperpresentsaneweigenvalue.0nthebaseofthis.acharacteristicsimilarityfunctionisdefined.Theexperimentprovesthatthenewfunctionh
5、asbetterconvergence.Theeffectofmatchingisbetter.(3)Duringthematchingoftestfaceimageandfaceelastictemplate,thepaperusesGeneticAlgorithmsowingtothesimilitudeoffacecharacteristicnode.Theexperimentprovesthatthecharacteristionode’spositionoftestfaceimageislabeledwellTherearet
6、endifferentimagesofeachof40distinctsubjectsinORLfacedatabasewhichweretakenatdifferenttimes,varyinglighting,facialexpressionsandheadpose.TheexperimentsontheORLdatabaseimprovethatthemethodofimprovedelastictemplatematchinggainsbetterrecognitionratethanPCA’s,especiallyforhum
7、anfacesofheadposevariedandfaceimagestakenintheconditionofilluminationvariety·Keywords:FaceRecognition;ElasticTemplate:DynamicLink;WaveletIl独创性声明本人声明所呈交的论文是我个人在导师指导下进行的研究工作及取得的研究成果。尽我所知,除了文中特别加以标注和致谢的地方外,论文中不包含其他人已经发表或撰写过的研究成果,也不包含为获得北京工业大学或其它教育机构的学位或证书而使用过的材料。与我一同工作的同志对本
8、研究所做的任何贡献均己在论文中作了明确的说明并表示了谢意。签名:日期:1,o·午.占.)。关于论文使用授权的说明本人完全了解北京工业大学有关保留、使用学位论文的规定,即:学校有权保留送交论文的复印件,允许论
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