Fingerprint recognition system
First Claim
Patent Images
1. A method of recognizing a fingerprint comprising:
- detecting the fingerprint;
digitizing the fingerprint;
subtracting a digitized background from the fingerprint, resulting in a difference print;
sending the difference print to a computer system to perform a match to identify an individual associated with the difference fingerprint;
receiving extracted features from the computer system; and
confirming the match on the sensor, if the computer system indicated a match.
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Abstract
A method and apparatus for fingerprint recognition is provided. A fingerprint is detected on a sensor. The fingerprint is digitized. A digitized background is subtracted from the fingerprint, resulting in a difference print. The difference print is matched with a database of fingerprint templates.
122 Citations
15 Claims
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1. A method of recognizing a fingerprint comprising:
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detecting the fingerprint; digitizing the fingerprint; subtracting a digitized background from the fingerprint, resulting in a difference print; sending the difference print to a computer system to perform a match to identify an individual associated with the difference fingerprint; receiving extracted features from the computer system; and confirming the match on the sensor, if the computer system indicated a match. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A biometric sensor coupled to a computer system, the biometric sensor comprising:
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a sensing unit to detect a biometric; a subtraction logic to subtract a digitized background from the fingerprint, resulting in a difference print; a connection to securely transmit the difference to the computer system for authentication and to receive a preliminary match from the computer system; and a decision making unit to perform verification of the preliminary match and make a final decision on whether the biometric is authenticated. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification