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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 1, Iss. 4 — Apr. 12, 2006

Multifactor authentication reinforces optical security

María S. Millán, Elisabet Pérez-Cabré, and Bahram Javidi  »View Author Affiliations

Optics Letters, Vol. 31, Issue 6, pp. 721-723 (2006)

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A new optical method to obtain multifactor image encoding and authentication is proposed. The encoded complex-amplitude image function fulfills the general requirements of invisible content, extreme difficulty in copying or counterfeiting, and real-time automatic verification. This optical technique is attractive for high-security purposes that require multifactor reliable authentication. A demonstration using a combination of biometric images and key codes is provided. Retina images, which are very effective for authentication, are used as biometric signals. To the best of our knowledge, this is the first report on combined multiple signal encoding and simultaneous AND authentications for optical security reinforcement.

© 2006 Optical Society of America

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(100.0100) Image processing : Image processing
(100.1160) Image processing : Analog optical image processing

ToC Category:
Image Processing

Original Manuscript: October 4, 2005
Revised Manuscript: November 21, 2005
Manuscript Accepted: November 21, 2005

Virtual Issues
Vol. 1, Iss. 4 Virtual Journal for Biomedical Optics

María S. Millán, Elisabet Pérez-Cabré, and Bahram Javidi, "Multifactor authentication reinforces optical security," Opt. Lett. 31, 721-723 (2006)

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