BIOMETRICS - School of Information Technology, IIT kharagpur
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Transcript BIOMETRICS - School of Information Technology, IIT kharagpur
BIOMETRICS
By
Lt Cdr V Pravin
05IT6019
BIOMETRICS
Forget
passwords ...
Forget
pin numbers ...
Forget
all your security concerns ...
BIOMETRICS
Introduction
General
system
Finger Print
Iris
Performance & Application
Conclusion
WHAT IS BIOMETRICS?
Automated
Pattern
method
recognition system
Specific
physiological or behavioral
characteristics
WHY USE IT?
Traditional
methods involving passwords
and PIN numbers
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
The hardware captures the salient human
characteristic
The software interprets the resulting data and
determines acceptability.
FINGER PRINT
Oldest
form of Biometrics
Highly
Reliable
Uses
distinctive features of fingers
FINGER PRINT RECOGNITION
Global
Local
features
features
GLOBAL FEATURES
Pattern Area
Core Point
Delta
Line types
Ridge Count
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
Optical
Thermal
Capacitance
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
Camera at close proximity
Captures photograph
Uses Infra red light to illuminate
High resolution photograph
IRIS SCAN IMAGE
IRIS CODE
Localization
of inner and outer boundaries
Pattern of 512 bytes
Complete and Compact description
More complete than features of DNA
IRIS SYTEM
Uniform
distribution
Pre
processing
Iris scan image
capture
Iris
localization
Stored
templates
Reject
Featureextraction
Identification
Verification
Accept
Iris code
comparison
IRIS RECOGNITION
Database
of millions of records
Iris code generated is compared
Searching algorithm based on Properties
of Iris
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
FAR
- As low as 1 in 1,000,00
FRR
–around 4%
IRIS PERFORMANCE
FAR
- As low as 1 in 1,000,000
FRR
–around 2%
APPLICATIONS
Criminal
identification
Prison security
ATM
Aviation security
Border crossing controls
Database access
SOME BIOMETRICS STILL IN
DEVELOPMENT
Scent
Ear Shape
Finger nail bed
Facial 3D
REFERENCES
www.biometix.com
www.biomet.org
www.owlinvestigation.com
www.ddl.ision.co.uk
www.zdnetindia.com/techzone/resources
www.biodata.com.au