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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. 12 — Dec. 1, 2008

Characterization of the human iris spectral reflectance with a multispectral imaging system

Meritxell Vilaseca, Rita Mercadal, Jaume Pujol, Monserrat Arjona, Marta de Lasarte, Rafael Huertas, Manuel Melgosa, and Francisco H. Imai  »View Author Affiliations


Applied Optics, Vol. 47, Issue 30, pp. 5622-5630 (2008)
http://dx.doi.org/10.1364/AO.47.005622


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Abstract

We present a multispectral system developed and optimized for measurement of the spectral reflectance and the color of the human iris. We tested several sets of filters as acquisition channels, analyzed different reconstruction algorithms, and used different samples as training sets. The results obtained show that a conventional three-channel color camera (RGB) was enough to reconstruct the analyzed reflectances with high accuracy, obtaining averaged color differences of around 2–3 CIEDE2000 units and root mean square errors of around 0.01. The device developed was used to characterize 100 real irises corresponding to 50 subjects, 68 prostheses used in clinical practice, and 17 cosmetic colored contact lenses.

© 2008 Optical Society of America

OCIS Codes
(040.1520) Detectors : CCD, charge-coupled device
(120.5700) Instrumentation, measurement, and metrology : Reflection
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(330.1710) Vision, color, and visual optics : Color, measurement
(110.4234) Imaging systems : Multispectral and hyperspectral imaging

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: July 24, 2008
Manuscript Accepted: September 15, 2008
Published: October 15, 2008

Virtual Issues
Vol. 3, Iss. 12 Virtual Journal for Biomedical Optics

Citation
Meritxell Vilaseca, Rita Mercadal, Jaume Pujol, Monserrat Arjona, Marta de Lasarte, Rafael Huertas, Manuel Melgosa, and Francisco H. Imai, "Characterization of the human iris spectral reflectance with a multispectral imaging system," Appl. Opt. 47, 5622-5630 (2008)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-47-30-5622

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