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《Design method of ARM based embedded iris recognition system》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、DesignmethodofARMbasedembeddedirisrecognitionsystemaabaWANGYuanboHEYuqingHOUYushiLIUTingaDepartmentofOpto-ElectronicEngineering,BeijingInstituteofTechnology,Beijing,P.R.China,100081bSmartirisBiometricsCo.Ltd.,Beijing,P.R.China,100081ABSTRACTWiththeadvantagesofnon-invasiveness,uniqueness,stability
2、andlowfalserecognitionrate,irisrecognitionhasbeensuccessfullyappliedinmanyfields.Uptonow,mostoftheirisrecognitionsystemsarebasedonPC.However,aPCisnotportableanditneedsmorepower.Inthispaper,weproposedanembeddedirisrecognitionsystembasedonARM.Consideringtherequirementsofirisimageacquisitionandrecog
3、nitionalgorithm,weanalyzedthedesignmethodoftheirisimageacquisitionmodule,designedtheARMprocessingmoduleanditsperipherals,studiedtheLinuxplatformandtherecognitionalgorithmbasedonthisplatform,finallyactualizedthedesignmethodofARM-basedirisimagingandrecognitionsystem.ExperimentalresultsshowthattheAR
4、Mplatformweusedisfastenoughtoruntheirisrecognitionalgorithm,andthedatastreamcanflowsmoothlybetweenthecameraandtheARMchipbasedontheembeddedLinuxsystem.It’saneffectivemethodofusingARMtoactualizeportableembeddedirisrecognitionsystem.Keywords:Embeddedsystem,ARM,Linux,Imageacquisition,Irisrecognition1
5、INTRODUCTIONTraditionalwaysforpersonalidentificationdependonexternalthingssuchaskeys,passwords,etc.Butsuchthingsmaybelostorforgotten.Onepossiblewaytosolvetheseproblemsisthroughbiometrics,foreverypersonhashisspecial[1]biometricfeaturesdefinitely.Biometricsidentificationhasgainedincreasingattention
6、fromthewholeworld.Biometricsfeaturesthatcanbeusedforidentificationincludefingerprints,palmprints,handwriting,veinpattern,facial[2]characteristics,iris,andsomeothermethodssuchasvoicepattern,etc.Comparedwithotherbiometricmethods,theirisrecognitionhasthefollowingadvantages:1.Theirisimageacquisitionr
7、equiresnophysicalcontact,soanirisidentificationsystemisnon-invasiveness.2.Sincetheirisiscreatedinanearlyrandommorphogeneticprocessduringthegestation,ithaslittleprobabilitytofindtwopeopleintheworldwhoseiristexturesareid
