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¶
2 citations across 2 artifacts.
Each citation links to the sentence it supports in the citing article.
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.
Supported in partVerified against the publisher's abstract
The 1968 abstract reports contrast thresholds for gratings measured across spatial frequencies and explains them by independent mechanisms tuned to limited spatial-frequency ranges.
“These findings can be explained by the existence within the nervous system of linearly operating independent mechanisms selectively sensitive to limited ranges of spatial frequencies.”
- 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.
Mechanisms¶
- Granularity Scale Ladder
- Its strength is pinning the disappear-and-emerge thresholds so a texture is specified for its actual viewing distance rather than for the hand — grounded in the eye's contrast-sensitivity limit
This sourceMeasures spatial-frequency contrast thresholds, showing that fine visual variation becomes unresolvable beyond the visual system’s contrast-sensitivity limits.
- Its strength is pinning the disappear-and-emerge thresholds so a texture is specified for its actual viewing distance rather than for the hand — grounded in the eye's contrast-sensitivity limit
Verification¶
Does it exist? Confirmed. This work's DOI resolves to a registered record, which fixes its identity. That is all it fixes.
Does it back the claim? Read against the text for 1 of 2 citations: 1 supported in part. Each verdict is shown under its citation below, with what in the work backs the sentence.
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Registry ID ref:113f5a474436 · see in the full table