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1、FingerprintEnhancementLinHong1,AnilJain1,SharathchaPankanti2,andRuudBolle21PatternRecognitionandImageProcessingLaboratoryDepartmentofComputerScienceMichiganStateUniversityEastLansing,MI48824fhonglin,jaing@cps.msu.edu2ExploratoryComputerVisionGroupIBMJ.T.Wat
2、sonResearchCenterYorktownHeights,NY10598fsharat,bolleg@watson.ibm.comAbstract(Figure1(a)),whichareusuallycalledminutiae,arethetwomostprominentstructuresusedinanautomaticfingerprintFingerprintimagesvaryinquality.Inordertoensureidentificationsystem.Automaticand
3、reliableextractionofthattheperformanceofanautomaticfingerprintidentifica-minutiaefromadigitalfingerprintimageisanextremelytionsystem(AFIS)willberobustwithrespecttothequal-difficulttask.Theperformanceofcurrentlyavailableityofinputfingerprintimages,itisessentialto
4、incorporateminutiaextractionalgorithmsreliesheavilyonthequalityafingerprintenhancementmoduleintheAFISsystem.Inofinputdigitalfingerprintimages.Duetoanumberofthispaper,weintroduceanewfingerprintenhancemental-factors(aberrantformationsofepidermalridgesoffin-gorith
5、mwhichdecomposestheinputfingerprintimageintogerprints,postnatalmarks,occupationalmarks,problemsasetoffilteredimages.Fromthefilteredimages,theori-withacquisitiondevices,etc.),digitalfingerprintimagesentationfieldisestimatedandaqualitymaskwhichdis-maynotalwayshave
6、well-definedridge/valleystructurestinguishestherecoverableandunrecoverablecorruptedre-whichtheminutiaextractionalgorithmsusuallyassume.gionsintheinputimageisgenerated.UsingtheestimatedThis,ofcourse,resultsinthefailureofminutiaextractionorientationfield,theinp
7、utfingerprintimageisadaptivelyalgorithms,which,inturn,resultsinthepoorperformanceenhancedintherecoverableregions.Theperformanceofofthefingerprintmatchingmodule.Figures1and2showouralgorithmhasbeenevaluatedbyconductingexperi-typicalexamplesofapplyingaminutiaext
8、ractionalgorithmmentsonanonlinefingerprintverificationsystemusingthe[9]tofingerprintimagesofbothgoodandpoorqualityMSUfingerprintdatabasecontainingover600fingerprintwhichareacquiredwithaninklessfingerprintsca
