Citation

Bichao IC, Yager D, Lewis A. Vis. Veh. 1996; 5: 27-32.

Copyright

(Copyright © 1996, Elsevier Publishing)

DOI

unavailable

PMID

unavailable

Abstract

In this paper the effect of luminance in reduced visibility conditions at night, visual field position, and blur (up to two diopters), on the ability to discriminate between a simulated common potential hazard (a pedestrian who is about to cross the street) were studied, and a situation that is visually very similar, but that a priori does not involve danger (a pedestrian on the side of the street, facing away from it). Target real-life video images of a pedestrian surrounded by a background of trees and a wooden fence, on the side of a road, were used. Throughout the experiment the subjects viewed this same scene under different conditions; with foveal or 10 deg fixation, with non-blurred or blurred images, and at several mean luminance levels in the mesopic and scotopic range.