基于人脸识别的门禁系统设计与实现

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284Vol.28NO.4JChongqingTechnolBusinessUniv.NatSciEd20118Aug.20111672-058X201104-0390-044000672010-12-192011-02-23.1977-.ARM9。、。PCAARM9TP216A1。1.1PCAPrincipalComponentsAnalysisPCAK-LK-L。1。。1.2PCAixi。x1x2…xn12。D3Dn×pp4KKp×p。x=1nΣni=1xi1yi=xi-x2D=y0y1…yn-13K=DTD=1nΣni=1yiyTi4Kλiνi。。。λm5。S=v1v2…vm5Sp×m。。1.3PCAx1x2…xn珋x、。N'N'<N。、、。。x6。。dExwk=x-wkTx-wk槡622。。341。1PC。6。122。S3C2410FLASHSDRAMLED。FLASHSDRAM。、、。1934ARM9ARM9SDRAM60MSDRAM。、、SDRAM。。ARM9URATARM9RJ45PCPC。3ARM963。31FLASHSDRAM。pmmeanfacetpleyetplPmMeanFacetEyet。PCFlash。2CCDfdata。3。。、、、。4。Meanpm。PCA。5。6。。。。。FRR。FAR7-9。4ARM9CMOSPCA。7.461s98.5%1.25%。293281YANGJZHANGDVYANGJY.TWODimensionalPCAANewApproachtoAppearance-basedFaceRepresentationandRecognitionJ.IEEETrans.PatternAnal.MachineIntell2004261131-1372.J..201023827-283.WinCEJ.20093258-2624.USBJ.20096558-5625.M.20096.PC/104J.2010242-437.SOPCJ.201125491-968.J.201125497-1019.J.20062744667-4673DesignandImplementationofDoorSecuritySystemBasedonFaceRecognitionZHUChao-pingSchoolofComputerScienceandInformationEngineeringChongqingTechnologyandBusinessUniversityChongqing400067ChinaAbstractFaceRecognitiontechnologyisthecompositeapplicationofbiotechnologyandcomputertechnologythedemandforsafetyandreliabilityofaccesscontrolsystembecomeshigherandhigherinmarket.ThedesignschemeofdoorsecuritysystembasedonARM9waspresented.Firstlyeffectivefeatureswereselectedandthealgorithmoffacedetectionandrecognitionwasbrieflyintroducedthenaccordingtotheimplementingprincipleofthealgorithmthedesignschemeofhardwaresystemwasdescribedindetail.Finallythealgorithmwastransplantedontothehardwaresystemthencontrolsoftwarewasdevelopedandimbeded-styleandrapiddoorsecuritysystembasedonfacerecognitionsystemwasimplemented.Theexperimentalresultsdemonstratethatthesystemworksreliablyandspeedlyandthefunctionofdoorsecuritysystemwasrealized.KeywordsfacerecognitionPCAARM9doorsecuritysystem3934

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