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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 27 — Sep. 20, 2005
  • pp: 5696–5703

Multispectral synthesis of daylight using a commercial digital CCD camera

Juan L. Nieves, Eva M. Valero, Sérgio M. C. Nascimento, Javier Hernández-Andrés, and Javier Romero  »View Author Affiliations


Applied Optics, Vol. 44, Issue 27, pp. 5696-5703 (2005)
http://dx.doi.org/10.1364/AO.44.005696


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Abstract

Performance of multispectral devices in recovering spectral data has been intensively investigated in some applications, as in spectral characterization of art paintings, but has received little attention in the context of spectral characterization of natural illumination. This study investigated the quality of the spectral estimation of daylight-type illuminants using a commercial digital CCD camera and a set of broadband colored filters. Several recovery algorithms that did not need information about spectral sensitivities of the camera sensors nor eigenvectors to describe the spectra were tested. Tests were carried out both with virtual data, using simulated camera responses, and real data obtained from real measurements. It was found that it is possible to recover daylight spectra with high spectral and colorimetric accuracy with a reduced number of three to nine spectral bands.

© 2005 Optical Society of America

OCIS Codes
(010.1290) Atmospheric and oceanic optics : Atmospheric optics
(150.0150) Machine vision : Machine vision
(150.2950) Machine vision : Illumination

History
Original Manuscript: January 3, 2005
Revised Manuscript: May 3, 2005
Manuscript Accepted: May 3, 2005
Published: September 20, 2005

Citation
Juan L. Nieves, Eva M. Valero, Sérgio M. C. Nascimento, Javier Hernández-Andrés, and Javier Romero, "Multispectral synthesis of daylight using a commercial digital CCD camera," Appl. Opt. 44, 5696-5703 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-27-5696


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