Face Recognition Technology(final)

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    N.NAGOORVALI (07U51A0465)

    By

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    Complex and largely software basedtechnique

    Analyze unique shape, pattern&positioning of facial features

    It compare scans to records stored incentral or local database or even on asmart card

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    It is a unique measurable characteristics of a

    human being

    Used to automatically recognize an individuals

    identityTwo types 1.physiological &

    2. behavioral characteristics

    A biometric system refers to integrated

    hardware and software used to conduct

    biometric identification

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    It requires no physical interaction on behalf of user

    It is accurate and allows for high enrolment and

    verification

    Not require an expert to interpret the comparison

    result

    Can use your existing infrastructure Passive identification

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    ` Two types of comparison in face recognition

    1.Verification- The system compare the given

    individual with who that individual says they are.

    2.Identification-The system compares a given

    individual to all the other individuals in the database

    and gives a ranked list of matches.

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    Capture Extraction Comparison

    Match/Non

    match

    Accept/Project

    STAGES OF IDENTIFICATION

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    ` Capture-Capture the behavioral sample

    ` Extraction-unique data is extracted from the

    sample and a template is created.

    ` Comparison-the template is compared with a new

    sample.

    ` Match/non match-the system decides whether the

    new samples are matched or not.

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    ` Enrollment module-An automated mechanism that

    scans and captures a digital or analog image of a

    living personal characteristics

    ` Database-Another entitywhich handles compression

    ,processing ,data storage and compression of the

    captured data with stored data

    ` Identification module-The third interfaces with the

    application system

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    FaceSystem

    Data base

    Preprocessing&

    segmentation

    Analysis AnalysisData

    Preprocessing&

    SegmentationAnalysis

    Facerag&

    scoring

    Enrollment Module

    reject

    Verification Module

    User

    Interface

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    ` False Acceptance Rate [FAR]

    ` False Rejection Rates [FRR]

    ` Response time

    ` Threshold/decision Threshold

    ` Enrollment time

    ` Equal error rate

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    ` Detection

    ` Alignment

    ` Normalization

    ` Representation

    ` Matching

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    ` Convenience and social acceptability

    ` Easy to use

    ` Inexpensive biometric

    DISADVANTAGE

    Face recognition systems cant tell the difference between

    identical twins

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    Government Use

    1. Law enforcement

    2.Security/counterterrorism

    3.Immigration Commercial Use

    1.Day care

    2.Residential security

    3.Voter verification4.Banking using ATM

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    Face recognition technologies have been

    associated generally with very costly top secure

    applications. Today the core technologies have

    Evolved and the cost of equipments is going downdramatically due to the integration.

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