1. Jenna Lutton February 26th, 2007
Biometrics
Jenna Lutton February 26th, 2007

2. Roadmap Introduction to Biometrics Facial Recognition Iris Scanning
Fingerprint Scanning
Palm-Vein Biometrics
Behaviometrics
Summary
Questions

3. Introduction
Biometrics – Use of physical characteristics to identify a person
Two goals:
Verification – Am I who I claim I am?
Identification – Who am I?
Future of security
Border patrol
ID Cards
ATM access

4. Facial Recognition
Compare a person’s face from a still image (or video capture) against a face stored in a database
Two approaches:
Geometric matching
Distance between facial features
Template matching
Facial image – 2D array of pixel intensity values
Compare against multiple templates of whole face

5. Issues Illumination Time Delay Pose Variation Facial Expression
Multiple faces in image
Wearing glasses, etc.

6. Fingerprint Scanning Very popular method of authentication
Every person has unique fingerprint
Scanner gets an image of your fingerprint
Compares pattern of specific fingerprint features (minutiae) against another pattern in a database

7. Only finds adequate number of common minutiae patterns

8. Problems Some can be fooled by images of fingerprints
Some can be fooled by molds
Mythbusters:
Developing ways to bypass these:
Scanner checks if cells are alive
Scanner checks if blood flowing through finger

9. Iris Scanning
Use infrared to capture an image of the iris (visible ring that surrounds the pupil)

10. Iris Scanning (cont.)
Each eye has a unique iris, has measurable features (striations, pits, furrows)
Controls the amount of light that enters the eye
After an image of the iris is taken, a pattern or code is generated based on its features

11. Advantages Have to be present at scanner Non-invasive
Not affected by contacts or glasses
More points of comparison

12. Palm-Vein Biometrics Veins are also unique among people
Uses near-infrared to identify all of the veins in your hand and captures that image

13. Advantages Change little with age
Hard to spoof – not all veins visible
Sanitary – don’t have to physically touch the scanner
Used today as extra security layer at ATM machines

14. Behaviometrics
Using behavioral characteristics of a person to verify or identify a person
Example: Identify a person by the way they type
Analyze keystroke timing
Determined by finger length, motor skills, etc.
Example: Handwriting analysis
Speed/rhythm of writing
Sequence in which you form letters

15. Summary Biometrics revolutionizing security
Not all methods are reliable or secure
Trying to find more ways to uniquely identify a person

16. Questions?

17. Sources http://www.iridiantech.com/index2.php
Early, Mark. “ARE Biometrics the Key to Data Security?” EContent; Sep2006; Vol. 29 Issue 7; Pg
Hall, Kenji. “Biometrics: Vein Scanners Show Progress.” Business Week Online; Pg 22