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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 17 — Sep. 1, 2009
  • pp: 2664–2666

Optimal illumination for discriminating objects with different spectra

Moon-Hyun Lee, Dong-Kyun Seo, Byung-Kuk Seo, and Jong-Il Park  »View Author Affiliations

Optics Letters, Vol. 34, Issue 17, pp. 2664-2666 (2009)

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Color differences are determined by illumination, the spectral reflectance of objects, and the spectral sensitivity of the imaging sensor. We explore the optimal illumination conditions that best separate one object from another. Given two objects with distinct spectra, we derive the optimal illumination spectrum to maximize their color distance with a plain RGB camera. In practice, it is crucial to compose the most appropriate illuminations using available lighting sources, since creating an arbitrary illumination spectrum is unrealistic. Therefore, we derive the optimal linear combination of the provided illumination sources. Finally, we verify the effectiveness of the methods through experiments.

© 2009 Optical Society of America

OCIS Codes
(110.2945) Imaging systems : Illumination design
(170.2945) Medical optics and biotechnology : Illumination design

ToC Category:
Imaging Systems

Original Manuscript: May 18, 2009
Revised Manuscript: July 23, 2009
Manuscript Accepted: July 28, 2009
Published: August 28, 2009

Moon-Hyun Lee, Dong-Kyun Seo, Byung-Kuk Seo, and Jong-Il Park, "Optimal illumination for discriminating objects with different spectra," Opt. Lett. 34, 2664-2666 (2009)

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