ABSTRACT

For a conversational robot, conveying its intention explicitly to the communicating human is one of the most important but challenging tasks in the field of human–robot interaction (HRI). Expressing the robot’s current mental state or feeling while conversing may help achieve a more effective communication. In this study, a robot equipped with a projecting system is implemented, in which the mental state of the robot is projected onto the backside wall to better convey its intention. To verify the effectiveness of the implemented system, as a first step, the effect of projecting only the text of the robot’s speech on the subjective evaluation of the communicating human was examined from different aspects of the robot. To this end, two experiments were conducted: a video watching experiment, in which several human subjects watched a video of a speaking robot equipped with the projecting system, and a participating experiment, in which a limited number of human subjects participated in listening to the speech of such a robot in a real-world environment. The experimental results revealed that the projection of the speech information can improve some elements of the human perception of the robot’s speech and mind.

摘要

对于对话机器人，将其意图明确地传达给交流的人是人机交互 (HRI) 领域中最重要但最具挑战性的任务之一。在交谈时表达机器人当前的精神状态或感觉可能有助于实现更有效的沟通。在这项研究中，实现了一个配备投影系统的机器人，其中机器人的精神状态被投影到后壁上，以更好地传达其意图。为了验证所实施系统的有效性，作为第一步，从机器人的不同方面检查了仅投射机器人语音文本对交流人主观评价的影响。为此，进行了两个实验：一个视频观看实验，其中几个人类受试者观看了配备投影系统的说话机器人的视频，以及一个参与实验，其中有限数量的人类受试者参与了在真实世界环境中聆听这种机器人的语音。实验结果表明，语音信息的投影可以改善人类对机器人语音和思维的感知的某些要素。