Abstract

This paper presents an analysis of experimental data from the results of which a parametric model of the perceptible-contrast threshold is developed for visual stimuli in a wide range of their angular sizes with an adaptation luminance of −2.465≤log L_a ≤2.535 and stimulus exposure 1/100≤τ<15 sec. The proposed model makes it possible to predict stimulus-discrimination probabilities whose values match the data of independent experiments.

Hyperacuity thresholds of 1 sec: theoretical predictions and empirical validation

Stanley A. Klein and Dennis M. Levi
J. Opt. Soc. Am. A 2(7) 1170-1190 (1985)

Ideal discriminators in spatial vision:two-point stimuli

Wilson S. Geisler and Karen D. Davila
J. Opt. Soc. Am. A 2(9) 1483-1497 (1985)

Discriminating smooth from sampled motion: chromatic and luminance stimuli

Simon J. Cropper and David R. Badcock
J. Opt. Soc. Am. A 11(2) 515-530 (1994)

Red–green and achromatic temporal filters: a ratio model predicts contrast-dependent speed perception

Andrew B. Metha and Kathy T. Mullen
J. Opt. Soc. Am. A 14(5) 984-996 (1997)

Predictions of an inhomogeneous model: Detection of local and extended spatial stimuli

Francis Kretz, Françoise Scarabin, and Eric Bourguignat
J. Opt. Soc. Am. 69(12) 1635-1648 (1979)