2. Introduction
• Fingerprint scanner usually uses in
police station, high-security building,
and so on.
• Now fingerprint scanner is less than
$100, so you use high-tech biometrics
easily .
3. Fingerprint Basics
• Fingerprint which go into deciding your genetic
make-up has a unique design.
• A Fingerprint scanner reads the pattern of ridges
and valleys on fingers.
• A fingerprint scanner is to discriminate
someone in both crime investigation and
security.
4. Optical Scanner
• Optical scanning is way to get a image of a
finger and to determine whether the pattern of
ridges and valleys.
• Optical scanning and capacitance scanning is a
charge coupled device (CCD) ; it is simply an
array of light-sensitive diodes.
5. Capacitance Scanner
• A simple capacitive sensor is made up of one or
more semiconductor chips containing an array
of tiny cells ; tiny cells include two conductor
plates.
• To scan the finger shorts each
amplifier’s input and output to
balance the integrator circuit.
6. Analysis
• Mimutiae -> concentrate on points where ridge
lines end or where one ridge splits into two
(bifurcations).
• The scanner system software uses highly
complex algorithms to recognize and to measure
the relative positions of minutiae.
