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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

  • Vol. 3, Iss. 10 — Oct. 1, 1986
  • pp: 1713–1725

Analysis of human color mechanisms using sinusoidal spectral power distributions

Terry Benzschawel, Michael H. Brill, and Theodore E. Cohn  »View Author Affiliations


JOSA A, Vol. 3, Issue 10, pp. 1713-1725 (1986)
http://dx.doi.org/10.1364/JOSAA.3.001713


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Abstract

We examined the effects of probing human color mechanisms using sinusoidal spectral power distributions (SPD’s) varying in frequency (i.e., from 0.1 to 5.0 cycles/300 nm for a constant starting phase) and phase (i.e., from 0 to 360 deg for a fixed frequency of 1 cycle/300 nm) through computer simulation using several color models. Predicted modulation sensitivity functions (MSF’s) in spectral frequency and phase differ among the models and indicate that measurements of the minimum amplitudes necessary to detect sinusoidal SPD’s would be useful for distinguishing among theories of color vision. MSF’s obtained from similar analyses of dichromats’ color mechanisms reveal characteristic patterns of modulation sensitivities and suggest that such measures could serve to distinguish type and degree of color-vision defect. Some implications based on sinusoidal approximations to illuminant and reflectance spectra are discussed along with more general considerations regarding sine-wave SPD’s as a probe for mechanisms of color vision.

© 1986 Optical Society of America

History
Original Manuscript: February 28, 1986
Manuscript Accepted: June 11, 1986
Published: October 1, 1986

Citation
Terry Benzschawel, Michael H. Brill, and Theodore E. Cohn, "Analysis of human color mechanisms using sinusoidal spectral power distributions," J. Opt. Soc. Am. A 3, 1713-1725 (1986)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-3-10-1713

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