Application of Fourier analysis to the visibility of gratings.¶
Campbell, F. W., & Robson, J. G. (1968). Application of Fourier analysis to the visibility of gratings. Journal of Physiology, 197(3), 551-566.
Cited by¶
1 citation across 1 artifact.
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Primes¶
- Contrast
- Perception and vision science studies contrast as foundational to vision across scales: Chevreul's work on simultaneous contrast in textile color (1839) demonstrated that the perceived intensity of a color shifts based on surrounding colors; Mach bands in edge detection showed that the visual system sharpens borders through lateral inhibition; Weber-Fechner law formalized that perceived difference scales logarithmically with stimulus intensity (the perceptual contrast required to distinguish two brightnesses depends on their ratio, not their absolute difference); Campbell and Robson (1968) introduced the contrast sensitivity function via Fourier analysis of grating visibility, establishing that the visual system can be characterized as a bank of spatial-frequency-tuned contrast channels; opponent-process theory (Hering, 1874) proposed that the visual system operates through opponent contrast channels (red-green, blue-yellow, light-dark); modern neurobiology confirms lateral inhibition in the retina and divisive normalization in cortex as contrast-enhancement mechanisms.
This sourceIntroduced the contrast sensitivity function — threshold for detecting sinusoidal luminance gratings varies systematically with spatial frequency — supporting the claim that vision can be characterized as a bank of frequency-tuned contrast channels. DOI resolves to the cited paper.
- Perception and vision science studies contrast as foundational to vision across scales: Chevreul's work on simultaneous contrast in textile color (1839) demonstrated that the perceived intensity of a color shifts based on surrounding colors; Mach bands in edge detection showed that the visual system sharpens borders through lateral inhibition; Weber-Fechner law formalized that perceived difference scales logarithmically with stimulus intensity (the perceptual contrast required to distinguish two brightnesses depends on their ratio, not their absolute difference); Campbell and Robson (1968) introduced the contrast sensitivity function via Fourier analysis of grating visibility, establishing that the visual system can be characterized as a bank of spatial-frequency-tuned contrast channels; opponent-process theory (Hering, 1874) proposed that the visual system operates through opponent contrast channels (red-green, blue-yellow, light-dark); modern neurobiology confirms lateral inhibition in the retina and divisive normalization in cortex as contrast-enhancement mechanisms.
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