BIOMETRICS SECURE WORLD

8/7/2019 BIOMETRICS SECURE WORLD

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BIOMETRICS SECUREBIOMETRICS SECURE

WORLDWORLD A scientific technique to study handA scientific technique to study hand

geometry,fingerprints,Eye structuregeometry,fingerprints,Eye structure

,voice recognition etc, use for individuals,voice recognition etc, use for individualsidentification.identification.

Conventional system access using fewConventional system access using few

digit password is easier todigit password is easier to

crack as user have some basic computercrack as user have some basic computer

knowledge.knowledge.


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Difficult to fake without help ofDifficult to fake without help of

owner.owner.

Easier to access as not require toEasier to access as not require toremember long sequenceremember long sequence

number,only put finger tip on sensor.number,only put finger tip on sensor.

This can be used in yourThis can be used in your

laptops,vehicles,home ,office,RNDlaptops,vehicles,home ,office,RNDorg,research lab etc.org,research lab etc.


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HOW BIOMETRICSHOW BIOMETRICS

WORKS ?WORKS ? The concept of Biometrics is veryThe concept of Biometrics is very

simple.simple.

The system has PreThe system has Pre--stored data.stored data. When you approach the system yourWhen you approach the system your

finger is scanned and matched with afinger is scanned and matched with arecord of fingerprint already in itsrecord of fingerprint already in its

database.database. Only when match is found access isOnly when match is found access is

granted.granted.


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BIOMETRICS

BIOMETRICS

FINGER PRINT

RECOGNITION

IRISH

SCAN

RETINA

SCAN

EYE

SCAN

FACIAL

RECOGNITION

SPEECH

RECOGNITION

BIOMETRICS


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FINGER PRINTFINGER PRINT

SCANNINGSCANNING Different peopleDifferent people

have different sethave different setof finger print.of finger print.

A finger print isA finger print ismade up of ridgesmade up of ridgesand valleys.and valleys.

It need to get theIt need to get the

image of the printsimage of the printswhich are to bewhich are to beauthenticated andauthenticated andthen verifying thethen verifying thedata.data.


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The commonly used method ofThe commonly used method of

scanning is optical scanning.scanning is optical scanning. An optical scanner has a CCD sensorAn optical scanner has a CCD sensor

similar to that used in a digitalsimilar to that used in a digitalcamera.There is an array of lightcamera.There is an array of light

sensitive diodes .When these diodessensitive diodes .When these diodescome in contact with light,theycome in contact with light,theygenerate electrical signal.generate electrical signal.

Each diode records a pixelEach diode records a pixel

representing the light it came inrepresenting the light it came incontact with.contact with.


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An analog to digital converterAn analog to digital converterconverts the electrical signal toconverts the electrical signal togenerate digital representation ofgenerate digital representation ofimage.image.

The process begins as soon as youThe process begins as soon as youput your finger on the glass plate.put your finger on the glass plate.

The scanner has own source of lightThe scanner has own source of lightwhich illuminate the finger and CCDwhich illuminate the finger and CCD

inside it takes the picture of it.inside it takes the picture of it. It first checks the integrity of theIt first checks the integrity of the

image in terms ofimage in terms ofcontrast,sharpness and sheercontrast,sharpness and sheer

quality.quality.


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How finger printHow finger print

recognition worksrecognition works


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Matching of prints is a complexMatching of prints is a complex

process in itself and far fromprocess in itself and far from

superimposing method.superimposing method.

Scanner compare specificScanner compare specific

features of the fingerprint calledfeatures of the fingerprint called

minutiae,which are presentminutiae,which are presentwhere ridge line ends.where ridge line ends.

Depending on the algorithm aDepending on the algorithm a

specific number of minutiaespecific number of minutiaemust be matched for finger printmust be matched for finger print

to be accessedto be accessed


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RETINAL SCANNINGRETINAL SCANNING For retina to be scanned theFor retina to be scanned the

user looks through a small holeuser looks through a small hole

in the scanning deice andin the scanning deice andfocuses on a particular point forfocuses on a particular point forthe time period for which a lowthe time period for which a lowintensity light and a CCDintensity light and a CCD

analyze a blood vessel at theanalyze a blood vessel at theback of eye for the matchingback of eye for the matchingpattern and validate personspattern and validate personsidentity.identity.


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IRISH

SCANIRISH

SCAN The IRIS is the colored ringThe IRIS is the colored ring

surrounding the pupil.surrounding the pupil.

The scan analyses the featuresThe scan analyses the featuresexist in colored tissue.exist in colored tissue.

Over 200 points can be used forOver 200 points can be used for

comparison such ascomparison such asrings,furrows,freckles etc.rings,furrows,freckles etc.

It is a more unique than a fingerIt is a more unique than a fingerprint.print.


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FACIAL RECOGNITIONFACIAL RECOGNITION

Every persons face has certainEvery persons face has certain

characteristic andcharacteristic and

distinguishable features.distinguishable features.

The software divide a face intoThe software divide a face into

80 nodes,some of common being80 nodes,some of common being

distance between eyes,width ofdistance between eyes,width ofnose,depth of eyenose,depth of eye

sockets,cheekbones,jaw linessockets,cheekbones,jaw lines

and chin.and chin.


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The system generally need 14The system generally need 14--2525

nodes in order to obtain positivenodes in order to obtain positive

ID.ID.

A database is created with theA database is created with the

algorithm,which goes through thealgorithm,which goes through the

characteristic of face and storecharacteristic of face and storethem as string of number calledthem as string of number called

face print.face print.


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Once camera encountered theOnce camera encountered the

face it starts scanning and takeface it starts scanning and take

the measurements.the measurements.

Once face is detected itOnce face is detected it

determine the heads size anddetermine the heads size and

position,generally it is 40 degreeposition,generally it is 40 degreetowards camera.towards camera.


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The algorithm then converts theThe algorithm then converts the

face into a face print based onface into a face print based on

pre defined criteria programmedpre defined criteria programmedinto the algorithm.into the algorithm.

This new data is then used as aThis new data is then used as a

filter to sort through database offilter to sort through database offaces come up with match.faces come up with match.


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FACIAL RECOGNITIONFACIAL RECOGNITION


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VOICE RECOGNITION

VOICE RECOGNITION

Every person has a uniqueEvery person has a uniquespeech pattern.This is work byspeech pattern.This is work byfirst store the voice pattern thenfirst store the voice pattern thenit is used as database toit is used as database toauthenticate a subject.authenticate a subject.

Voice recognition work recordingVoice recognition work recording

the physical characteristic ofthe physical characteristic ofvocal tract,the harmonic andvocal tract,the harmonic andresonant frequencies and convertresonant frequencies and convertit into audio file called voiceit into audio file called voice

print.print.


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INSTALLATATIONINSTALLATATION It is no longer limited to defenseIt is no longer limited to defense

establishment or sensitiveestablishment or sensitive

areas.areas. It is installed in officesIt is installed in offices

Devices like laptops,ThumbDevices like laptops,Thumb

drives,gadgets etc.drives,gadgets etc. Locking systems in Home,Locking systems in Home,Automobiles etc.Automobiles etc.

Documents

BIOMETRICS SECURE WORLD