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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 3, Iss. 4 — Apr. 23, 2008

Use of retinal nerve fiber layer birefringence as an addition to absorption in retinal scanning for biometric purposes

Mikael Agopov, Boris I. Gramatikov, Yi-Kai Wu, Kristina Irsch, and David L. Guyton  »View Author Affiliations


Applied Optics, Vol. 47, Issue 8, pp. 1048-1053 (2008)
http://dx.doi.org/10.1364/AO.47.001048


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Abstract

We built a device sensitive to the birefringence of the retinal nerve fiber layer for biometric purposes. A circle of 20 ° diameter on the retina was scanned around the optic disk with a spot of light from a 785 nm laser diode. The nonbirefringent blood vessels indenting or displacing the retinal nerve fiber layer were seen as “blips” in the measured birefringence-derived signal. For comparison, the reflection–absorption signature of the blood vessel pattern in the scanned circle was also measured. The birefringence-derived signal proved to add useful information to the reflectance–absorption signature for retinal biometric scanning.

© 2008 Optical Society of America

OCIS Codes
(260.1440) Physical optics : Birefringence
(330.4460) Vision, color, and visual optics : Ophthalmic optics and devices

ToC Category:
Vision, Color, and Visual Optics

History
Original Manuscript: July 10, 2007
Revised Manuscript: October 11, 2007
Manuscript Accepted: January 9, 2008
Published: March 6, 2008

Virtual Issues
Vol. 3, Iss. 4 Virtual Journal for Biomedical Optics

Citation
Mikael Agopov, Boris I. Gramatikov, Yi-Kai Wu, Kristina Irsch, and David L. Guyton, "Use of retinal nerve fiber layer birefringence as an addition to absorption in retinal scanning for biometric purposes," Appl. Opt. 47, 1048-1053 (2008)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-47-8-1048


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