It is one of the most widely used technologies in the field of Biometrics for security and authentication purpose. The need of physical presence at the time of identification with these systems makes identification even more authentic. Use of this technology also overcomes necessity of remembering passwords and Pins. It uses a biometric sensor to scan the fingerprint images of a person and then compares it with the existing database to check the authenticity. Different algorithms are used to extract the unique features from the fingerprint images which are stored in the database.
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