Saturday, June 13, 2009

biometric

Biometric system is mainly a identification system for pattern that operates by getting data from an individual and comparing the same against the template set in the database. Based on the application context, this may operate either in verification mode or identification mode.
In the first mode, the system recognizes a person’s identity by comparing the captured biometric data with own biometric templates stored in system database. In such a system, the person who desires to be recognized claims an identity, usually a PIN number, a username, a smartcard, etc., and the system conducts a one- to- one comparison to find whether the claim is true or not. Identity verification is typically used for positive recognition, where the aim is to prevent multiple people using same identity.

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