指纹识别算法的研究与实现-翻译.doc

指纹识别算法的研究与实现-翻译.doc

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指纹识别算法的研究与实现-翻译

苏州大学本科生毕业设计（论文）附件:

外文文献资料与中文翻译稿

外文文献资料

收集:

苏州大学应用技术学院10电子,学号1016405029,,李磊,

FINGERPRINTRECOGNITIONUSINGMINUTIASCOREMATCHINGABSTRACT:

ThepopularBiometricusedtoauthenticateapersonisFingerprintwhichisuniqueandpermanentthroughoutaperson’slife.Aminutiamatchingiswidely

usedforfingerprintrecognitionandcanbeclassifiedasridgeendingandridgebifurcation.InthispaperweprojectedFingerprintRecognitionusingMinutiaScoreMatchingmethod（FRMSM）.ForFingerprintthinning,theBlockFilterisused,whichscanstheimageattheboundarytopreservesthequalityoftheimageandextracttheminutiaefromthethinnedimage.Thefalsematchingratioisbettercomparedtotheexistingalgorithm.

Key-words:

-FingerprintRecognition,Binarization,BlockFilterMethod,MatchingscoreandMinutia.

1.Introduction

Biometricsystemsoperateonbehavioralandphysiologicalbiometricdatatoidentifyaperson.Thebehavioralbiometricparametersaresignature,gait,speechandkeystroke,theseparameterschangewithageandenvironment.Howeverphysiologicalcharacteristicssuchasface,fingerprint,palmprintandirisremainsunchangedthroughoutthelifetimeofaperson.Thebiometricsystemoperatesasverificationmodeoridentificationmodedependingontherequirementofanapplication.Theverificationmodevalidatesaperson’sidentitybycomparingcapturedbiometricdatawithreadymadetemplate.Theidentificationmoderecognizesaperson’sidentitybyperformingmatchesagainstmultiplefingerprintbiometrictemplates.Fingerprintsarewidelyusedindailylifeformorethan100yearsduetoitsfeasibility,distinctiveness,permanence,accuracy,reliability,andacceptability.Fingerprintisapatternofridges,furrowsand

minutiae,whichareextractedusinginkedimpressiononapaperorsensors.Agood

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苏州大学本科生毕业设计（论文）附件:

外文文献资料与中文翻译稿

qualityfingerprintcontains25to80minutiaedependingonsensorresolutionandfingerplacementonthesensor.Thefalseminutiaearethefalseridgebreaksduetoinsufficientamountofinkandcross-connectionsduetooverinking.Itisdifficulttoextractreliablyminutiafrompoorqualityfingerprintimpressionsarisingfromverydryfingersandfingersmutilatedbyscars,scratchesduetoaccidents,injuries.MinutiabasedfingerprintrecognitionconsistsofThinning,Minutiaeextraction,MinutiaematchingandComputingmatchingscore.Motivation:

Themotivationbehindtheworkisgrowingneedtoidentifyapersonforsecurity.Thefingerprintisoneofthepopularbiometricmethodsusedtoauthenticatehumanbeing.TheproposedfingerprintverificationFRMSMprovidesreliableandbetterperformancethantheexistingtechnique.

Contribution:

InthispaperweusedFingerprintRecognitionusingMinutiaScoreMatchingmethodwiththehelpofMATLABcodes.Minutiaeareextractedfromthethinnedimageforbothtemplateandinput

image.Finallyboththeimagesaresubjectedtomatchingprocessandmatchingscoreiscomputed.

Organization:

Thispaperisorganizedintothefollowingsections.SectionIIisandefinitionoftherelatedworkanddescribesModelforfingerprintrecognitionindetail,SectionIIIgivesthealgorithm.InsectionIVperformanceanalysisandresultsarediscussedandfinallyinsectionVgivetheconclusions

2.Relatedwork

G.SambasivaRaoetal.,proposedfingerprintidentificationtechniqueusingagraylevelwatershedmethodtofindouttheridgespresentonafingerprintimagebydirectlyscannedfingerprintsorinked36impression.RobertHastingsdevelopedamethodforenhancingtheridgepatternbyusingaprocessoforienteddiffusionbyadaptationofanisotropicdiffusiontosmooththeimageinthedirectionparalleltotheridgeflow.Theimageintensityvariessmoothlyasonetraversealongtheridgesorvalleysbyremovingmostofthesmallirregularitiesandbreaksbutwiththeidentityoftheindividualridgesandvalleyspreserved.JinweiGu,

etal.,proposedamethodforfingerprintverificationwhichincludesbothminutiaeandmodelbasedorientationfieldisused.Itgivesrobustdiscriminatory

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苏州大学本科生毕业设计（论文）附件:

外文文献资料与中文翻译稿

informationotherthanminutiaepoints.Fingerprintmatchingisdonebycombiningthedecisionsofthematchersbasedontheorientationfieldandminutiae.V.VijayaKumariandN.SuriyanarayananproposedamethodforperformancemeasureoflocaloperatorsinfingerprintbydetectingtheedgesoffingerprintimagesusingfivelocaloperatorsnamelySobel,Roberts,Prewitt,CannyandLoG.Theedgedetectedimageisfurthersegmentedtoextractindividualsegmentsfromtheimage.RajuSonavane,andB.S.Sawantpresentedamethodbyintroducingaspecialdomainfingerprintenhancementmethodwhichdecomposesthefingerprintimageintoasetoffilteredimagesthenorientationfieldisestimated.Aqualitymaskd