Investigating the Effect of Lateral Inhibition in the Retinal Circuitry on Lightness Contrast and Assimilation: A Model Study

TitleInvestigating the Effect of Lateral Inhibition in the Retinal Circuitry on Lightness Contrast and Assimilation: A Model Study
Publication TypeChart
Year of Publication2015
AuthorsKim J, Bertalmío M
Image Source ProgramVision Sciences Society Annual Meeting
Abstract
Brightness / lightness at a particular stimulus region depends on the properties (e.g. size or luminance) of the surrounding regions. Some surroundings induce spatial contrast, while others induce assimilation. Here we show that some patterns of spatial effects in the induction phenomena demonstrated in psychophysical studies by Rudd (2010) and Helson (1963) can be predicted by two biologically-plausible retinal models developed by Wilson (1997) and van Hateren (2005; 2007), each with a minimal yet critical modification.