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时间:2019-07-02
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1、ADissertationSubmittedtoZhejiangUnivers。‘fortheDegreeofVers1tYegreeMasterofEngineering⑧TITLE:墨旦E垒QQ基金鱼Qg翌i主至Q旦§Y§主皇坐旦垒§皇鱼Q旦!呈里皇二Q兰二E里至gh主g垒堡皇!垒Author:ZhouYuSupervisor:△:£:丛i翌g里i坠圣h垒旦gSubject:Prof.ZhigengPanCollege:gQ里乜望主金!§Qi金旦曼旦SubmittedDate:02/15/2012浙江大学硕.}j学位论文AbstractAbstractAsthemostimpor
2、tantbiometricofhumanrace,facerecognitionhasattractedtheattentionofmanyresearchers.Mostpreviousworksaboutthissubjectfocusedon2Dfacerecognitionbasedonnormal伊ay—levelimage.Thosemethodsaresusceptibletolightandposevariation.However,3Ddatahavemorecomprehensivegeometryinformationofhumanfaceanditwillce
3、rtainlybringbeRerrecognitionaccuracy.Sothatthe3Dfacerecognitionhasbecomeanewresearchhotspot.Traditional3Ddataacquisitiondevices,suchaslaserscanningandstructurelightdevice,areoftenexpensiveandtimeconsuming.Asanalternativedepthmeasuringequipment,Time-of-Flightdepthcamerahassomeadvantages,suchasco
4、mpactconstructionandreal—timedatacapturerate.Itwillhaveagreatimpactoncomputergraphics,computervisionandotherrelatedfields.Inthispaper,wefirstlyintroducetheTOFdepthcameratothebiometricfield,anddevelopcomplete3DfacerecognitionsystembasedonthisTOFcamera,makingfulluseofthe3Dfaceinformationthatweget
5、fromthenewdepthsensor,andwealsobenefitfromitsinsensitivitytothechangingofenvironmentlighting.Sowecangethighaccuracy,robustnessanduniversality.Weusethe3DLBPoperatorandLog—Gaborfiltertoextractthedistinctivefeatureshiddeninthe3Drawdata,andtraintheclassifierusingsomerobustmachinelearningalgorithmst
6、hatisusedtofinishtherecognitiontask.SincetheTOFcameraisfastandefficient,therecognitionsystemCanaccomplishtherecognitiontaskveryfast.WehaveprovedthatthisTOFdepthcamerahaveagreatvalueinreal—timebiometricapplications.Keywords・DepthCamera,Time—of-flightPrinciple,PattenRecognition,FaceRecognition,Bi
7、ometrics浙江大学硕十:学位论文目录目录摘要………………………………………………………………………………………….iAbstract..….……….……………………….….……….….….….…..…………….………….…..………..ii第1章绪论…………………………………………………………………………l1.1课题背景…………………………………………………………………….11.2论文主要工作及内容安排………………………………………………….21.3
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