An expressible pupil response interface using hemispherical displays

Abstract

Focusing on the pupil response which is related to human emotions, we analyzed the pupil response in human face-toface communication and demonstrated that the pupil response would be related to the speech. On the basis of the analysis, we developed an embodied communication system in which an interactive CG character generates the pupil response by using speech input for realizing smooth communication during embodied interactions. In addition, it was confirmed that the pupil response is effective to enhance emotional expression. In this study, in order to extract the effect of pupil response, we developed an expressible pupil response interface using hemispherical displays. This interface looks like robot’s eyeballs and expresses vivid pupil response by using speech input. In addition, we carried out the communication experiment under the condition that the developed interface speaks. The effectiveness of the developed interface was demonstrated by means of sensory evaluation.