Title:
METHOD AND SYSTEM FOR FINGERPRINT ENCODING AND AUTHENTICATION
Document Type and Number:
WIPO Patent Application WO2003017183
Kind Code:
A3
Abstract:
A method, system and computer readable-storage medium for generating an identification code from a fingerprint image exhibiting a plurality of features. The method includes establishing a reference point from the plurality of features, generating at least one metric from the reference point and at least one of the plurality of features and forming the identification code from the at least one metric. Changes in the temperature and humidity of a finger when the image is taken at different times will result in minor variations of the measured features which, upon quantization, result a metric that is invariant from one fingerprint image to the next, for the same finger. This lowers the false rejection rate to an acceptable level. Meanwhile, the metric is sufficiently unique for a given set of features such that the probability of assigning the same metric to two different fingers is lowered to an acceptable level.
Inventors:
CHAU LAM KO (CA)
Application Number:
PCT/CA2002/001274
Publication Date:
July 29, 2004
Filing Date:
August 15, 2002
Export Citation:
Assignee:
LISKA BIOMETRY INC (US)
CHAU LAM KO (CA)
CHAU LAM KO (CA)
International Classes:
G06K9/00; (IPC1-7): G06K9/00
Domestic Patent References:
| WO2001026549A1 | 2001-04-19 | |||
| WO2001006447A1 | 2001-01-25 |
Foreign References:
| US3558864A | 1971-01-26 | |||
| US4817183A | 1989-03-28 | |||
| EP0372762A2 | 1990-06-13 |
Other References:
KOVACS-VAJNA Z M: "A FINGERPRINT VERIFICATION SYSTEM BASED ON TRIANGULAR MATCHING AND DYNAMIC TIME WARPING", IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, IEEE INC. NEW YORK, US, vol. 22, no. 11, November 2000 (2000-11-01), pages 1266 - 1276, XP001102786, ISSN: 0162-8828
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