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BIOMETRICS By Lt Cdr V Pravin 05 IT 6019
BIOMETRICS Ø Forget passwords. . . Ø Forget pin numbers. . . Ø Forget all your security concerns. . .
BIOMETRICS Ø Introduction Ø General system Ø Finger Print Ø Iris Ø Performance & Application Ø Conclusion
WHAT IS BIOMETRICS? Ø Automated method Ø Pattern recognition system Ø Specific physiological or behavioral characteristics
WHY USE IT? Ø Traditional methods involving passwords and PIN numbers Ø Biometrics highest level of security
CHARACTERISTICS USED • • • Fingerprints Voiceprints Facial features Writing patterns Iris patterns Hand geometry
BIOMETRIC SYSTEM § § § Data Collection Transmission Signal Processing Data Storage Decision
BIOMETRIC SYSTEM
HOW IT WORKS l l The hardware captures the salient human characteristic The software interprets the resulting data and determines acceptability.
FINGER PRINT Ø Oldest form of Biometrics Ø Highly Reliable Ø Uses distinctive features of fingers
FINGER PRINT RECOGNITION Ø Global features Ø Local features
GLOBAL FEATURES Ø Pattern Area Ø Core Point Ø Delta Ø Line types Ø Ridge Count Ø Ridge Patterns
BASIC RIDGE PATTERNS § Loop § Arch § Whorl
LOOP, ARCH AND WHORL
STAGES § Fingerprint Scanning § Fingerprint Matching § Identification
FINGERPRINT SCANNING § It’s the acquisition and recognition of a person’s fingerprint characteristics for identification purposes
IMAGE CAPTURE Ø Optical Ø Thermal Ø Capacitance Ø Ultra Sound
IMAGE ACQUISITON
MINUTIA MATCHING
BRIDGE CODE
SPUR CODE
PROCESS
PROCESS
FINGERPRINT PC LOCK
FINGERPRINT DOOR LOCK
IRIS RECOGINITION
IRIS RECOGNITION Pattern recognition technique Identification by mathematical analysis of the random patterns. Based upon the qualities of the Iris
Iris is a protected internal organ whose random texture is stable throughout life
IRIS PROPERTIES High degree of Randomness No two Iris are alike Stable in a persons life Doesn't vary with changes
IRIS SCAN Ø Camera at close proximity Ø Captures photograph Ø Uses Infra red light to illuminate Ø High resolution photograph
IRIS SCAN IMAGE
IRIS CODE Ø Localization of inner and outer boundaries Ø Pattern of 512 bytes Ø Complete and Compact description Ø More complete than features of DNA
IRIS SYTEM Uniform distribution Pre processing Iris scan image capture Iris localization Featureextraction Iris code Identification Verification Stored templates Reject Accept comparison
IRIS RECOGNITION Ø Database of millions of records Ø Iris code generated is compared Ø Searching algorithm based on Properties of Iris Ø Order of a few seconds
AVIATION – IRIS DEVICES
BIOMETRIC PERFORMANCE FAR The FAR is the chance that someone other than you is granted access to your account. Low false acceptance rate is most important when security is the priority
BIOMETRIC PERFORMANCE FRR The FRR is the probability that are not authenticated to access your account. A low FRR is required when convenience is the important factor
FINGERPRINT PERFORMANCE Ø FAR - As low as 1 in 1, 000, 00 Ø FRR –around 4%
IRIS PERFORMANCE Ø FAR - As low as 1 in 1, 000 Ø FRR –around 2%
APPLICATIONS Ø Criminal identification Prison security Ø ATM Ø Aviation security Ø Border crossing controls Ø Database access Ø
SOME BIOMETRICS STILL IN DEVELOPMENT § Scent § Ear Shape § Finger nail bed § Facial 3 D
REFERENCES l l l www. biometix. com www. biomet. org www. owlinvestigation. com www. ddl. ision. co. uk www. zdnetindia. com/techzone/resources www. biodata. com. au
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