Development of Realistic Digital Expression of Human Avatars through Pupillary Responses based on Heart Rate

The eyes of a virtual human avatar are the fundamental means for communicating language and affective feelings in a virtual environment. For this purpose, this study evaluates user's visual feeling according to the changes pupillary responses based on the heart rate for a representing a human avatar; this is considered as a new factor for representing a realistic avatar. We construct a human avatar in which the pupillary response is delivered real-time based on the heart rate. The results can be regarded as the basis for designing a realistic human avatar system by supporting a new visual realistic representing factor.