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Conferences > OAM > 1993 > ThGG > ThGG.5

The effect of spatial sampling on the visibility of letters and gratings

Kenneth R. Alexander, Wei Xie, Janet P. Szlyk, and Gerald A. Fishman

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Abstract

Spatial sampling of visual targets results in a reduction in effective stimulus contrast and a loss of information.1 To determine the contribution of these two factors to grating resolution and to letter identification, we measured visual acuity and contrast thresholds for spatially sampled gratings and letters.

© 1993 Optical Society of America

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