Date Added: Oct 2009
Biometrics is the science of recognizing the identity of a person based on the physical or behavioral attributes of the individual such as face, fingerprints, voice and iris. Data derived from direct measurement of a part of the human body. Fingerprint, iris-scan, retina-scan, hand geometry, and facial recognition are leading physiological biometrics. An automatic personal identification system based solely on one methodology often cannot meet the system performance requirements. So a combination of two or more methodologies is used to achieve required performance, which is called multi biometrics. This paper explains technique used in biometric system, which includes Iris recognition, Finger print identification, speech recognition, Hand geometry.