Iris recognition is an automated method of bio metric identification that uses mathematical pattern-recognition techniques on video images of one or both of the irises of an individual's eyes, whose complex patterns are unique, stable, and can be seen from some distance. Retinal scanning is a different, ocular-based bio metric technology that uses the unique patterns on a person's retina blood vessels and is often confused with iris recognition. Iris recognition uses video camera technology with subtle near infrared illumination to acquire images of the detail-rich, intricate structures of the iris which are visible externally.

1. IRIS RECOGNITION
BY :
N.SRUTHI

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

4. Comparision

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.

7. Individuality of Iris
Left and right eye irises have distinctive pattern.

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.

11. HOW : THE SCIENCE BEHIND IT

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.

13. Recording of Identities

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.

18. References
 ·http://en.wikipedia.org/wiki/Iris_recognition
 .www.seminars4u.com