Winter, J., Fotios, S. orcid.org/0000-0002-2410-7641 and Voelker, S. (2018) The effects of glare and inhomogeneous visual fields on contrast detection in the context of driving. Lighting Research and Technology, 50 (4). pp. 537-551. ISSN 1477-1535
Abstract
An experiment was carried out to investigate how contrast threshold for target detection is affected by the presence of glare and by extraneous light sources using the method of ascending limits. The target was located at either a foveal or a peripheral (10° right) location, glare was adjacent to the foveal location, simulating the headlamps of an oncoming vehicle, and extraneous light sources were at either foveal or peripheral (10° right or left) locations. Contrast threshold for a foveal target without glare was affected mainly by the surrounding local luminance distribution. However, in the presence of glare and also for the peripheral target (both with and without glare) the global luminance distribution matters. Glare increased the contrast needed for detection of the foveal target, but this effect was reduced by the presence of extraneous light sources that were peripheral to the target. For peripheral targets, contrast threshold was also reduced by the presence of extraneous light at a non-target location and this effect was increased in the presence of glare. Glare equations tend to be based on tests using uniform, homogenous fields: these data indicate that, in the presence of extraneous light sources, the influence of glare is over-estimated.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © The Chartered Institution of Building Services Engineers 2016. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Dates: |
|
Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Social Sciences (Sheffield) > School of Architecture (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 10 Oct 2016 12:22 |
Last Modified: | 30 Jun 2023 15:38 |
Status: | Published |
Publisher: | SAGE Publications (UK and US) |
Refereed: | Yes |
Identification Number: | 10.1177/1477153516672719 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:105712 |
Download
Filename: winter_fotios_voelker_2018_glare_contrast_threshold.pdf
Licence: CC-BY 3.0