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Conferences > OAM > 1987 > THPO > THPO50

Effect of noise on contrast thresholds for gratings

Risto Nasanen

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Abstract

Contrast thresholds were measured for sinusoidal gratings at different spatial frequencies and grating areas with and without additive static spatial noise. The increase of contrast threshold produced by noise was dependent on spatial frequency and gratng area: for high spatial frequencies and small grating areas the increase of thresholds was larger than for low spatial frequencies and large grating areas.

© 1987 Optical Society of America

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