FACE RECOGNITION TECHNOLOGY

FACE RECOGNITION FACE RECOGNITION TECHNOLOGYTECHNOLOGY

JITHIN.S.J.JITHIN.S.J.

S7 CSE.S7 CSE.123seminarsonly.com123seminarsonly.com

FACE RECOGNITIONFACE RECOGNITION

All identification and authentication All identification and authentication technologies operate using the 4 stage technologies operate using the 4 stage procedureprocedure

capturecapture extractionextraction comparisoncomparison match/nonmatchmatch/nonmatch

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There are two methods of capture There are two methods of capture Video imaging Video imaging

Video imaging uses video cameras.Video imaging uses video cameras.System performance depends on precise System performance depends on precise position, angle of the head and position, angle of the head and

surrounding surrounding lighting condition.lighting condition. Thermal imagingThermal imaging

Thermal imaging has better accuracy as it Thermal imaging has better accuracy as it uses facial temperature variation.uses facial temperature variation.Disadvantage is that its very costly.Disadvantage is that its very costly.


CAPTURING OF IMAGE BY CAPTURING OF IMAGE BY STANDARD VIDEO CAMERASSTANDARD VIDEO CAMERAS


COMPONENTS OF FACE COMPONENTS OF FACE RECONITION SYSTEMRECONITION SYSTEM

Consists of three modulesConsists of three modules Enrollment moduleEnrollment module DatabaseDatabase IdentificationIdentification


Performance ParametersPerformance Parameters

False acceptance rate,FAR= NFA/NIIA False acceptance rate,FAR= NFA/NIIA NFA= number of false acceptance NFA= number of false acceptance NIIA=no of imposter identification attemptNIIA=no of imposter identification attempt

False rejection rate,FRR = NFR/NEIAFalse rejection rate,FRR = NFR/NEIANFR=number of false rejectionNFR=number of false rejectionNEIA=number of enrollee identification NEIA=number of enrollee identification

attempt attempt Threshold/decision thresholdThreshold/decision threshold Equal error rateEqual error rate


IMPLEMENTATION OF FACE IMPLEMENTATION OF FACE RECOGNITION TECHNOLOGYRECOGNITION TECHNOLOGY

Data acquisitionData acquisition Input processingInput processing Face image classification and decision Face image classification and decision

makingmaking


HOW FACE RECOGNITION HOW FACE RECOGNITION SYSTEMS WORKS-an exampleSYSTEMS WORKS-an example

Visionics, a company based in New JerseyVisionics, a company based in New Jersey FaceitFaceit There are distinguishable landmark on your face called There are distinguishable landmark on your face called

peaks and valleys-nodal pointspeaks and valleys-nodal points 80 nodal points on human face like80 nodal points on human face like

-distance between eyes-distance between eyes-width of nose-width of nose-depth of eye socket-depth of eye socket-cheek bones-cheek bones-jawline-jawline-chin-chin

faceit needs 14 to 20 nodal pointsfaceit needs 14 to 20 nodal points


THE SOFTWARETHE SOFTWARE

The basic process used by Faceit system The basic process used by Faceit system areare

DetectionDetection AlignmentAlignment NormalisationNormalisation RepresentationRepresentation MatchingMatching


ADVANTAGES AND ADVANTAGES AND DISADVANTAGESDISADVANTAGES

ADVANTAGESADVANTAGES Convenient, social acceptabilityConvenient, social acceptability Easy to useEasy to use Inexpensive technique of identificationInexpensive technique of identification

DISADVANTAGESDISADVANTAGES Problem with false rejection when people change their Problem with false rejection when people change their

hair style, grow or shave a beard or wear glasses.hair style, grow or shave a beard or wear glasses. Identical twinsIdentical twins


WHY WE CHOOSE FACE WHY WE CHOOSE FACE RECOGNITIONRECOGNITION

No physical interaction on behalf of the userNo physical interaction on behalf of the user Does not require an expert to interpret the Does not require an expert to interpret the

comparisoncomparison Can use existing hardware infrastructureCan use existing hardware infrastructure Can use existing image without having to re-Can use existing image without having to re-

enroll everytimeenroll everytime Only biometric that allows you to perform Only biometric that allows you to perform

passive identification in a one to many passive identification in a one to many environmentenvironment


APPLICATIONSAPPLICATIONS

Replacement of PIN,physical tokensReplacement of PIN,physical tokens No need of human assistance for identificationNo need of human assistance for identification Prison visitor systemsPrison visitor systems Border controlBorder control Voting systemVoting system Computer securityComputer security Banking using ATMBanking using ATM Physical access control of buildings,areas etcPhysical access control of buildings,areas etc


CONCLUSIONCONCLUSION

Cost of equipments is going down-cost Cost of equipments is going down-cost effectiveeffective

ReliableReliable No technological or financial barriersNo technological or financial barriers


Thank Thank youyou


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FACE RECOGNITION TECHNOLOGY