2. CONTENTS
THE NEED FOR BIOMETRIC
ANATOMY OF HUMAN EYE
WHAT IS IRIS
CHARACTERISTICS OF IRIS
WHAT IS IT?
WHY?
HOW:THE SCIENCE BEHIND IT
MERITS
DEMERITS
APPLICATIONS
CONCLUSION
3. The need for biometrics
As per wikipedia,
“Biometrics consists of methods for uniquely recognizing
humans based upon one or more intrinsic physical or
behavioral traits”
The need for biometrics
-> Rapid development in technology
-> Globalization
5. Anatomy of the Human Eye
• Eye = Camera
• Cornea bends, refracts,
and focuses light.
• Retina = Film for image
projection (converts image
into electrical signals).
• Optical nerve transmits
signals to the brain.
6. What is Iris?
The coloured ring around the pupil of the eye is called the iris.
Controls light levels inside the eye.
Tiny muscles that dilate and constrict the pupil size.
Divides the front of the eye from the back of the eye.
Color comes from melanin.
8. Characteristics of Iris
Has highly distinguishing texture.
Right eye differs from left eye.
Twins have different iris texture.
Iris pattern remains unchanged after the age of two and does not
degrade overtime or with the environment.
Iris patterns are extremely complex than other biometric
patterns.
9. What Is It?
“Iris recognition is a method of biometric authentication that uses
pattern-recognition techniques based on high-resolution images of the
irises of an individual's eyes.”
10. WHY ?
• The iris is a living password
• Artificial duplication is virtually impossible
• Probability of matching of two irises is 1:1078
• Genetic independency
• Its inherent isolation and protection from the external
environment.
12. Iris Localization
Both the inner boundary and the outer boundary of a typical
iris can be taken as circles.
The inner boundary between the pupil and the iris is detected.
14. Highly protected, internal organ of the eye
Iris patterns possess a high degree of randomness
Patterns apparently stable throughout life.
A key advantage of iris recognition is its stability, or template
longevity, as a single enrollment can last a lifetime.
Merits
15. Demerits
Obscured by eyelashes, lenses, reflections
Illumination should not be visible or bright.
Small target to acquire from a distance
High cost
16. Applications
. ATMs
.Computer login: The iris as a living password.
· National Border Controls: The iris as a living password.
· Premises access control (home, office, laboratory etc.).
· Driving licenses and other personal certificates.
· Forensics, birth certificates, tracking missing or wanted person
· Credit-card authentication.
· Automobile ignition and unlocking; anti-theft devices.
· Anti-terrorism (e.g.:— suspect Screening at airports)
· Secure financial transaction (e-commerce, banking).
· Internet security, control of access to privileged information.
17. Conclusion
Iris recognition has proven to be a very useful and
versatile security measure.
It is a quick and accurate way of identifying an individual
with no chance for human error.
Iris recognition will prove to be a widely used security
measure in the future.