発話呼気に同期する音声駆動型瞳孔反応ロボットPupiloidの開発

抄録

We have already developed a pupil response robot called “Pupiloid” that generates the robot's gaze as well as pupil response which are closely related to human emotions. This robot can express pupil response like human by using the mechanism which rotates feathers sterically. In this study, for the basic research of realizing smooth communication during embodied interaction between human and robot, we perform the analysis of pupil response during his or her utterance by using a pupil measurement device. On the basis of the analysis, we propose a concept in which the robot's pupil is dilated by synchronizing with the burst-pause of utterance. Then, we develop an advanced communication robot that is used with the Pupiloid for enhancing the robot's affects such as enthusiasm in utterance. This advanced robot generates a vivid pupil response via mechanical structures based on the burst-pause of utterance. The effectiveness of the developed robot is demonstrated by a sensory evaluation in the communication experiment for 20 subjects.