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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. 21, Iss. 4 — Apr. 1, 2004
  • pp: 486–490

Masking effects of low-frequency sinusoidal gratings on the detection of contrast modulation in high-frequency carriers

G. Bruce Henning  »View Author Affiliations


JOSA A, Vol. 21, Issue 4, pp. 486-490 (2004)
http://dx.doi.org/10.1364/JOSAA.21.000486


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Abstract

A modification and extension of KortumGeisler’s model [Vision Res. 35, 1595 (1995)] of early visual nonlinearities that incorporates an expansive nonlinearity (consistent with neurophysiological findings [Vision Res. 35, 2725 (1995)], a normalization based on a local average retinal illumination, similar to Mach’s proposal [RatliffF., Mach Bands: Quantitative Studies on Neural Networks in the Retina (Holden-Day, San Francisco, Calif., 1965)], and a subsequent compression suggested by Henning [J. Opt. Soc. Am A 17, 1147 (2000)] captures a range of hitherto unexplained interactions between a sinusoidal grating of low spatial frequency and a contrast-modulated grating 2 octaves higher in spatial frequency.

© 2004 Optical Society of America

OCIS Codes
(330.1880) Vision, color, and visual optics : Detection
(330.5000) Vision, color, and visual optics : Vision - patterns and recognition
(330.5510) Vision, color, and visual optics : Psychophysics
(330.7310) Vision, color, and visual optics : Vision

History
Original Manuscript: August 5, 2003
Revised Manuscript: November 3, 2003
Manuscript Accepted: December 2, 2003
Published: April 1, 2004

Citation
G. Bruce Henning, "Masking effects of low-frequency sinusoidal gratings on the detection of contrast modulation in high-frequency carriers," J. Opt. Soc. Am. A 21, 486-490 (2004)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-21-4-486

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