Abstract:

The automated use of physiological or behavioral characteristics to determine or verify identity. To elaborate on this definition, physiological biometrics are based on measurements and 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. Biometric system is the integrated biometric hardware and software used to conduct biometric identification or verification. A generalized biometric system is expressed nearly with figure.

Various biometric technologies are fingerprint identification, speaker recognition, facial recognition, hand geometry, signature-scan, keystroke-scan, palm-scan, etc. Among these popular recognition techniques like fingerprint recognition , facial recognition and speech recognition are clearly explained. 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 multibiometrics. In this paper we explained an example of multibiometric system, which combines fingerprint identification, speech recognition and facial recognition. A neatly sketched figure is used to describe the process in brief.

Biometrics has wide area applications; Most of them are covered in this paper.
Also some of the future applications like ATM machine, workstation and network access, travel and tourism and telephone transactions are given.

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