Winter, J., Fotios, S. orcid.org/0000-0002-2410-7641 and Voelker, S. (2019) The effect of assuming static or dynamic gaze behaviour on the estimated background luminance of drivers. Lighting Research & Technology, 51 (3). pp. 384-401. ISSN 1477-1535
Abstract
Application of the Commission Internationale de l’Eclairage system for mesopic photometry requires that an estimate is made of the observers’ state of luminance adaptation. This paper addresses an assumption made when estimating background luminance, a component of adaptation luminance. Specifically, using spatial sampling of the visual field we compare background luminances determined from assumptions of static or dynamic visual gaze, the former being a simplification, the latter being a better representation based on eye movements when driving. The comparison was undertaken with luminance images of urban scenes at night on three roads, two real and one simulated. It was found that background luminances were significantly higher when estimated using the dynamic assumption. It was also found that scene luminances at the point of foveal fixations tend to be higher than those luminances influencing peripheral regions of the retina. Compared with the background luminance estimated for a dynamic peripheral field, a horizon-centred 108 circle led to a slightly higher estimate and the road surface luminance to a slightly lower estimate of background luminance.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 The Chartered Institution of Building Services Engineers. This is an author-produced version of a paper subsequently published in Lighting Research and Technology. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
Dates: |
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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: | 23 Feb 2018 12:53 |
Last Modified: | 20 Apr 2021 10:26 |
Status: | Published |
Publisher: | SAGE Publications |
Refereed: | Yes |
Identification Number: | 10.1177/1477153518757594 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:127631 |
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