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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 24, Iss. 4 — Apr. 1, 2007
  • pp: 942–956

Selecting algorithms, sensors, and linear bases for optimum spectral recovery of skylight

Miguel A. López-Álvarez, Javier Hernández-Andrés, Eva M. Valero, and Javier Romero  »View Author Affiliations


JOSA A, Vol. 24, Issue 4, pp. 942-956 (2007)
http://dx.doi.org/10.1364/JOSAA.24.000942


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Abstract

In a previous work [ Appl. Opt. 44, 5688 (2005) ] we found the optimum sensors for a planned multispectral system for measuring skylight in the presence of noise by adapting a linear spectral recovery algorithm proposed by Maloney and Wandell [ J. Opt. Soc. Am. A 3, 29 (1986) ]. Here we continue along these lines by simulating the responses of three to five Gaussian sensors and recovering spectral information from noise-affected sensor data by trying out four different estimation algorithms, three different sizes for the training set of spectra, and various linear bases. We attempt to find the optimum combination of sensors, recovery method, linear basis, and matrix size to recover the best skylight spectral power distributions from colorimetric and spectral (in the visible range) points of view. We show how all these parameters play an important role in the practical design of a real multispectral system and how to obtain several relevant conclusions from simulating the behavior of sensors in the presence of noise.

© 2007 Optical Society of America

OCIS Codes
(040.0040) Detectors : Detectors
(150.2950) Machine vision : Illumination
(280.0280) Remote sensing and sensors : Remote sensing and sensors

ToC Category:
Machine Vision

History
Original Manuscript: June 9, 2006
Revised Manuscript: September 27, 2006
Manuscript Accepted: October 6, 2006
Published: March 14, 2007

Citation
Miguel A. López-Álvarez, Javier Hernández-Andrés, Eva M. Valero, and Javier Romero, "Selecting algorithms, sensors, and linear bases for optimum spectral recovery of skylight," J. Opt. Soc. Am. A 24, 942-956 (2007)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-24-4-942

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