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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. 15, Iss. 8 — Aug. 1, 1998
  • pp: 2036–2045

Statistics of cone responses to natural images: implications for visual coding

Daniel L. Ruderman, Thomas W. Cronin, and Chuan-Chin Chiao  »View Author Affiliations


JOSA A, Vol. 15, Issue 8, pp. 2036-2045 (1998)
http://dx.doi.org/10.1364/JOSAA.15.002036


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Abstract

We gathered hyperspectral images of natural, foliage-dominated scenes and converted them to human cone quantal catches to characterize the second-order redundancy present within the retinal photoreceptor array under natural conditions. The data are expressed most simply in a logarithmic response space, wherein an orthogonal decorrelation robustly produces three principal axes, one corresponding to simple changes in radiance and two that are reminiscent of the blue–yellow and red–green chromatic-opponent mechanisms found in the primate visual system. Further inclusion of spatial stimulus dimensions demonstrates a complete spatial decorrelation of these three cone-space axes in natural cone responses.

© 1998 Optical Society of America

OCIS Codes
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(330.1720) Vision, color, and visual optics : Color vision
(330.4060) Vision, color, and visual optics : Vision modeling
(330.5310) Vision, color, and visual optics : Vision - photoreceptors

History
Original Manuscript: December 11, 1997
Revised Manuscript: April 7, 1998
Manuscript Accepted: April 9, 1998
Published: August 1, 1998

Citation
Daniel L. Ruderman, Thomas W. Cronin, and Chuan-Chin Chiao, "Statistics of cone responses to natural images: implications for visual coding," J. Opt. Soc. Am. A 15, 2036-2045 (1998)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-15-8-2036

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