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EXPERIMENTAL EVALUATION OF DIFFERENT BRIGHTNESS PERCEPTION MODELS BASED ON HUMAN PUPIL LIGHT RESPONSES

Zandi, Babak and Guo, Xue and Bodrogi, Peter Zsolt and Khanh, Tran Quoc :
EXPERIMENTAL EVALUATION OF DIFFERENT BRIGHTNESS PERCEPTION MODELS BASED ON HUMAN PUPIL LIGHT RESPONSES.
Proceedings of CIE 2018 "Topical Conference on Smart Lighting" 26 - 27 April 2018, Taipei, Chinese Taipei
[Conference or Workshop Item] , (2018)

Abstract

Since the discovery of the intrinsically photosensitive retinal ganglion cells, there has been a renewed view on the processes that lead to a light induced pupil dilatation. To predict the pupil diameter, a large number of models have been established which are in general based on the luminance as a light photometric parameter. In this work we investigate how the pupil responds to different polychromatic spectra at constant luminance and brightness according to models of Fotios et al. and Berman. The results indicate that especially under photopic conditions, the pupil diameter has significant differences between the used spectra. The use of the brightness model according to Fotios et al. improves this (F(2,22) = 87.76, p < .05.) compared to a constant luminance (F(2, 22) = 522.05, p < .05), but statistical differences still exist. Under mesopic conditions using the Berman-brightness-model no significant differences in pupil diameters can be determined with F(1.11, 7.78) = 1.61, p > .05.

Item Type: Conference or Workshop Item
Erschienen: 2018
Creators: Zandi, Babak and Guo, Xue and Bodrogi, Peter Zsolt and Khanh, Tran Quoc
Title: EXPERIMENTAL EVALUATION OF DIFFERENT BRIGHTNESS PERCEPTION MODELS BASED ON HUMAN PUPIL LIGHT RESPONSES
Language: English
Abstract:

Since the discovery of the intrinsically photosensitive retinal ganglion cells, there has been a renewed view on the processes that lead to a light induced pupil dilatation. To predict the pupil diameter, a large number of models have been established which are in general based on the luminance as a light photometric parameter. In this work we investigate how the pupil responds to different polychromatic spectra at constant luminance and brightness according to models of Fotios et al. and Berman. The results indicate that especially under photopic conditions, the pupil diameter has significant differences between the used spectra. The use of the brightness model according to Fotios et al. improves this (F(2,22) = 87.76, p < .05.) compared to a constant luminance (F(2, 22) = 522.05, p < .05), but statistical differences still exist. Under mesopic conditions using the Berman-brightness-model no significant differences in pupil diameters can be determined with F(1.11, 7.78) = 1.61, p > .05.

Title of Book: Proceedings of CIE 2018 "Topical Conference on Smart Lighting" 26 - 27 April 2018, Taipei, Chinese Taipei
Uncontrolled Keywords: steady state pupil, brightness models
Divisions: 18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design
18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design > Light Technology
Event Location: Taipei, Taiwan
Event Dates: 24.-28. April 2018
Date Deposited: 20 Dec 2018 07:46
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