Automatic detection of unconscious reactions to illuminance changes in illumination

Authors:
Kensuke Kitamura;Noriko Takemura;Yoshio Iwai;Kosuke Sato
Affiliations:
Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan;Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan;Graduate School of Engineering, Tottori University, Tottori, Tottori, Japan;Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
Venue:
AMDO'12 Proceedings of the 7th international conference on Articulated Motion and Deformable Objects
Year:
2012

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Abstract

In this study, we investigated expressive facial reactions in response to changes in the visual environment and their automatic extraction from sensors, in order to construct a comfortable level of illumination in personal living spaces. We conducted an experiment that showed that expressive facial reactions occur when illumination in the visual environment changes. We captured facial images and manually classified them as expressing or not expressing discomfort. We then conducted a second experiment that showed that automatic image processing can be used to extract and identify these expressive facial reactions. We extracted facial features and used a support vector machine to learn the classification in this experiment.