06-Biometrics-Lecture-6-Part2-2008-10-27

06-Biometrics-Lecture-6-Part2-2008-10-27 - Master SC...

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1 Biometrics http://scgwww.epfl.ch/courses Master SC – Information and Communication Security Dr. Andrzej Drygajlo Speech Processing and Biometrics Group Signal Processing Institute Ecole Polytechnique Fédérale de Lausanne (EPFL) Center for Interdisciplinary Studies in Information Security (ISIS)
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2 Fingerprint Recognition Generalities Applications Fingerprints and their images History of fingerprints Fingerprint sensing Fingerprint features Fingerprint matching Fingerprint enhancement Performance evaluation Synthetic fingerprint generation
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3 Accuracy in biometric verification systems FMR (False Match Rate) – probability that a user’s template is incorrectly judged to be a match for a different user’s template. FNMR (False Nonmatch Rate) – probability that a user’s template will be incorrectly judged to not match his or her enrollment template
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4 Matching Score Distributions
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5 DET (Detection Error Tradeoff) x and y axis have normal deviate scales
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6 Detection error trade-off: FAR vs FRR
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7 Best of 3 attempts
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8 FVC 2004 Results
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9 Verification example Assume a frequent flyer smartcard with fingerprint
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This note was uploaded on 06/25/2009 for the course MATH MAT 400 taught by Professor Jamespotvein during the Fall '08 term at University of Toronto.

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06-Biometrics-Lecture-6-Part2-2008-10-27 - Master SC...

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