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1984
The contrast sensitivity function is a normalised description of a system’s sensitivity to spatial frequencies in terms of the contrast required to perform some perceptual task. For detection tasks, the human C.S.F. peaks at around 3–5 cycles/deg and reaches zero at about 60 cycles/deg. See modulation transfer function .
Alan Bundy, Lincoln Wallen
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The contrast sensitivity function is a normalised description of a system’s sensitivity to spatial frequencies in terms of the contrast required to perform some perceptual task. For detection tasks, the human C.S.F. peaks at around 3–5 cycles/deg and reaches zero at about 60 cycles/deg. See modulation transfer function .
Alan Bundy, Lincoln Wallen
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Microprocessor-controlled contrast sensitivity measurements
Medical and Biological Engineering and Computing, 1979A system is described for automatic measurement of contrast sensitivity functions (c.s.f.). The measuring technique is based on the Von Bekesy tracking method. One c.s.f. can be measured in 10 min. The stimuli (sinewave gratings) are generated on a t.v. monitor screen.
C J, Keemink +2 more
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Iodinated contrast sensitivity in ERCP
The American Journal of Gastroenterology, 2000Iodine contrast media are detectable in the bloodstream after ERCP, and sensitivity reactions have been described. The risk is very small, and the phenomenon is therefore difficult to study. This review discusses the possible need for preventative strategies, and recommends that endoscopists consider the issue and define their own policies.
P, Draganov, P B, Cotton
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Myopia and contrast sensitivity function
Current Eye Research, 2001to measure the contrast sensitivity function of varying degrees of myopia with two types of optical correction (spectacle lens and contact lens).One hundred and five myopic eyes and twenty-eight emmetropic eyes were collected. The myopic group included 105 eyes corrected with spectacle lenses and 71 eyes of them corrected with contact lenses, too; all ...
S W, Liou, C J, Chiu
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Optica Acta: International Journal of Optics, 1977
Like the modulation transfer function of man-made imaging devices, the contrast sensitivity of the human eye can be measured with sinusoidal grating targets of various spatial frequencies. Criterion-free psychophysical methods permit us to regard the contrast sensitivity as a direct measure of the subject's visual performance, independent of subjective
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Like the modulation transfer function of man-made imaging devices, the contrast sensitivity of the human eye can be measured with sinusoidal grating targets of various spatial frequencies. Criterion-free psychophysical methods permit us to regard the contrast sensitivity as a direct measure of the subject's visual performance, independent of subjective
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[Photopic contrast sensitivity. Local contrast perception].
Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft, 2008Contrast perception is an important visual function. Contrast sensitivity (CS) is affected by to optical reasons (aberrations, scatter, diffraction) or neural dysfunction (e.g., glaucoma, optic nerve diseases). In clinical practice the measurement of CS is relevant for disease monitoring, expert opinions, roadworthiness assessment, and recruitment ...
M, Bach +5 more
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A cross-disorder dosage sensitivity map of the human genome
Cell, 2022Ryan L Collins, Ab +2 more
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