Yang, B. and Fotios, S. (2015) Lighting and recognition of emotion conveyed by facial expressions. Lighting Research and Technology , 47 (8). 964 - 975. ISSN 1477-1535
A recent study examined how luminance and spectral power distribution affect recognition of facial expression, a proxy for pedestrians' judgements concerning the apparent intent of other people. This paper describes a repeat study which included a greater number of test luminances, a third type of lamp, and an additional, shorter duration of observation (500 ms). Luminance and distance had significant effects on expression recognition; the effect of lamp was not significant and the effect of duration was suggested to be significant only within the escarpment region of the performance versus luminance relationship. The results were used to estimate appropriate light levels for outdoor lighting. A luminance of 1.0 cd/m2 permits facial expressions to be identified with a 50% probability of correct identification at a distance of 15 m.
|Copyright, Publisher and Additional Information:||© The Chartered Institution of Building Services Engineers 2014. This article is distributed under the terms of the Creative Commons Attribution 3.0 License (http://www.creativecommons.org/licenses/by/3.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).|
|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:||26 Jan 2016 13:17|
|Last Modified:||26 Jan 2016 13:17|