Biometric System

1. A Presentation by…
 Pravallika Sriram
 Umamaheswarao
 Gouse Meeravali
 Nagulmeera
 Suresh

2. PRESENTATION OUTLINE
 What is biometric ?
 How biometric works ?
 Operating modes
 Types of biometrics
 Applications of biometrics
 Advantages & Disadvantages
 conclusion

3. Biometrics refers to the automatic identification of a
person based on his or her physiological or
behavioral characteristics .
DEFINITION OF BIOMETRICS

4. HOW BIOMETRICS WORKS ?

5. A biometric system can operate in two
modes
• Identification
• verification

6. Types of Biometrics
 Physiological
 Face
 Fingerprint
 Retina
 Iris recognition
 Behavioral
 Signature
 Voice

7. Facial Recognition
1. Capture image
2. Find face in image
3. Extract features
(store template)
4. Compare templates
5. Declare matches

8. Finger print recognition
 A fingerprint scanner
has two basic jobs.
 It needs to get an image
of your finger.

9.  It needs to determine
whether the pattern of ridges
and valleys in this image
matches pattern of ridges
and valleys in pre-scanned
images.

10. Retina recognition
Images back of the eye
and compares blood
vessels with existing data

11. Iris recognition
Iris scanning measures the iris pattern in
the colored part of the eye.

12. Signature Verification
An automated method of measuring an individual’s
signature.
This technology examines speed, direction, and pressure of
writing; the time that the stylus is in and out of contact with the
“paper’’.

13. Speaker / Voice Recognition
Voice or speaker recognition uses vocal characteristics to
identify individuals using a pass-phrase.
A telephone or microphone can serve as a sensor.

14. Application
 Criminal identification
 Prison security
 ATM and other Financial Transactions
 PC/LAN Login
 Attendance
 Border crossing controls

16. Border crossing controls

17. Advantages of Biometrics
 Biometrics are generally used for authentication.
 It provides higher security .e.g. Iris recognition .
 Voice Recognition works well over the telephone
 User friendly
e.g. Hand geometry recognization,
finger print recognition.

18. Disadvantages of Biometrics
 Retina recognization requires close physical contact of the
scanning device, may not be generally accepted by public
 Costly
 Voice recognization requires large amount of computer
storage, people's voices can change, background noises can
interfere.
 Biometrics features may change over time.
 Signature recognization has poor long-term reliability,
accuracy difficult to ensure.

19. Conclusion
 Technology is growing rapidly, but at the same time security
breaches and transactions frauds are also in the increase world
over.
 All agencies including libraries who are in need of security and
safety have to adopt biometrics
 Let us hope for safe and secure future.

20. That’s all for biometrics…..