Keywords

flicker thresholds, temporal contrast sensitivity, retinal illuminance

Abstract

Watson and Ahumada (1992 SID) predicted flicker thresholds for bright displays using a temporal contrast sensitivity function (TCSF). Under the assumptions that the falling limb of the TCSF is linear at all retinal illuminations and that the Ferry-Porter law can be extended to supra-threshold levels, the thresholds for any of the three variables (frequency in Hz, log10 contrast, and retinal illuminance in log Trolands) can be predicted from the other two from a linear model with four parameters.

Start Date

15-5-2015 9:00 AM

End Date

15-5-2015 9:25 AM

Session Number

05

Session Title

Early Vision

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May 15th, 9:00 AM May 15th, 9:25 AM

A Linearized Model for Flicker and Contrast Thresholds at Various Retinal Illuminances

Watson and Ahumada (1992 SID) predicted flicker thresholds for bright displays using a temporal contrast sensitivity function (TCSF). Under the assumptions that the falling limb of the TCSF is linear at all retinal illuminations and that the Ferry-Porter law can be extended to supra-threshold levels, the thresholds for any of the three variables (frequency in Hz, log10 contrast, and retinal illuminance in log Trolands) can be predicted from the other two from a linear model with four parameters.