|
How it works
>>>>...
1
2
3
4
5
Biometric systems convert data derived
from behavioral or physiological characteristics into templates,
which are used for subsequent matching. This is a multi-stage
process whose stages are described below.
Enrollment - The process whereby a
user’s initial biometric sample or samples are collected, assessed,
processed, and stored for ongoing use in a biometric system.
Enrollment takes place in both 1:1 and 1:N systems. If users are
experiencing problems with a biometric system, they may need to
re-enroll to gather higher quality data.
Submission - The process whereby a
user provides behavioral or physiological data in the form of
biometric samples to a biometric system. A submission may require
looking in the direction of a camera or placing a finger on a
platen. Depending on the biometric system, a user may have to remove
eyeglasses, remain still for a number of seconds, or recite a pass
phrase in order to provide a biometric sample.
Acquisition device – The hardware
used to acquire biometric samples. The following acquisition devices
are associated with each biometric technology:
|
Technology |
Acquisition Device
|
|
Fingerprint
|
Desktop peripheral, PCMCIA
card, mouse, chip or reader embedded in keyboard
|
|
Voice recognition
|
Microphone, telephone
|
|
Facial recognition
|
Video camera, PC camera,
single-image camera |
|
Iris-scan |
Infrared-enabled video camera,
PC camera |
|
Retina-scan
|
Proprietary desktop or
wall-mountable unit |
|
Hand geometry
|
Proprietary wall-mounted unit
|
|
Signature-scan
|
Signature tablet,
motion-sensitive stylus |
|
Keystroke-scan
|
Keyboard or keypad
|
>>>>...
1
2
3
4
5
|
