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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 24 — Aug. 20, 2006
  • pp: 6263–6269

Dual-LED imaging for finger liveliness detection and its evaluation with replicas

Katsuki Tai, Etsuji Matsuyama, Masashi Kurita, and Ichiro Fujieda  »View Author Affiliations


Applied Optics, Vol. 45, Issue 24, pp. 6263-6269 (2006)
http://dx.doi.org/10.1364/AO.45.006263


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Abstract

Unattended fingerprint identification systems need to reject input attempts by a replica. Previously, we proposed detecting the color changes of a finger during an input action as a signature of liveliness. To improve its reliability, a dual-LED imaging system is investigated. It employs two LEDs with peak emissions at 530 and 630 ‚ÄČ nm to cover the spectral ranges where live fingers show characteristic changes. Using nine types of replicas and the live fingers of 42 participants, we have recorded and analyzed 153 input trials. The two groups of data are successfully separated by some defined criteria.

© 2006 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(110.2960) Imaging systems : Image analysis
(110.2970) Imaging systems : Image detection systems
(170.0110) Medical optics and biotechnology : Imaging systems

History
Original Manuscript: November 4, 2005
Revised Manuscript: February 26, 2006
Manuscript Accepted: March 21, 2006

Virtual Issues
Vol. 1, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Katsuki Tai, Etsuji Matsuyama, Masashi Kurita, and Ichiro Fujieda, "Dual-LED imaging for finger liveliness detection and its evaluation with replicas," Appl. Opt. 45, 6263-6269 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-24-6263

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