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1、华南理工大学博士学位论文基于视频的人脸识别研究姓名：李盛阳申请学位级别：博士专业：通信与信息系统指导教师：叶梧20041001摘要ABSRACTRecently,facerecognitioninvideoisdevelopedrapidlyduetotherequirementoftheapplicationofvideomonitor,human-computercommunicationandvideoretrieval.Humanfacerecognitioninvideoconsistsof
2、threeparts:humanfacedetectinginsingleframe,humanfacetracingofvideo,identificationofhumanfaceimagesequences.Thisdissertationisfocusedonthesethreeparts,andgainsachievementsinphases.Inaddition,thisdissertationalsoincludesaprimaryarithmeticevaluatingsystemo
3、fhumanfaceidentification,instrumentfingermonitortechnologyinindustrialprocessanddefaultdetectingtechnologybasedonminimalentropy.FacedetectionarithmeticbasedonDCTdomainisdevelopedinthisdissertation,becausemostvideoinformationexistsincompressingformat,and
4、DCTisgenerallyusedinvideoandpicturecompressing.ThisarithmeticaccomplishestheprimarydetectionofhumanfacebasedonGaussmodelinTSLcolorspaceatfirst,andthen,deletesnon-faceregionusingclassifierbasedonDCTgradientenergyandpreviousknowledge.Wedesigntwokindsofcla
5、ssifier,oneisusedinvalidatinghumanfaceregionbasedonvarianceofgradientenergy,theothersisbasedongradientenergytemplate.Experimentsshowthatthisarithmetichasbetterperformancesinsimplepersonsimplebackground,singlepersoncomplexbackground,multipersonsimpleback
6、groundandmultipersoncomplexbackground.BasedontheresearchofMPEGvideostream,facetracingsystemincomplexbackgroundbasedonMPEGstreamisproposed.Thesystemuseshistogramtodivideshot,andthenautomaticusesMPEGcodingcharacteristictotracehumanfacedetectedfromIframe.E
7、xperimentsshowthatthisarithmeticisrobustinshadingandturningsituations.Animprovedelasticgraphmatchingarithmeticisusedinidentificationofstatichumanfacefiguresandhumanfacesequencesinthisdissertation.Thisarithmeticlabelsfeaturepointbasedonenergydistributing
8、ofGaborwavelettransform,sonohumaninterventionisneededintrainingprocess.ExperimentsshowthatthisarithmetichashigheridentifyingratesthanEBGMarithmetic.Inordertoevaluatetheperformanceofthearithmeticofhumanfaceidentification,wedesigna
