A retinal smear technique for varying grating contrast
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H M Petry1, K Knoblauch, R K Moore
1Department of Psychology, State University of New York, Stony Brook 11794.
Vision Research
|January 1, 1987
Abstract:
We present here a technique for modulating contrast in gratings seen in Maxwellian-view or on a projection screen. The method can be used with achromatic or chromatic grating stimuli. It is based on a high frequency oscillatory displacement of the grating image, which in turn produces a smearing of the image on the observer's retina. The waveform of the displacement and its amplitude determine the appearance and contrast of the image produced on the retina.
