tailieunhanh - Advances in Human Robot Interaction Part 12

Tham khảo tài liệu 'advances in human robot interaction part 12', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 264 Advances in Human-Robot Interaction Experiment on the coincidence of basic emotional sounds with facial expressions Nakanishi et al. 2006 proposed a visualization of musical impressions on faces in order to represent emotions. They developed a media-lexicon transformation operator of musical data to extract some impression words from musical elements that determine the form or structure of a song. Lim et al. 2007 suggested the emergent emotion model and described some flexible approaches to determine the generation of emotion and facial mapping. They mapped the three facial features of the mouth eyes and eyebrows into the arousal and valence of the two-dimensional circumplex model of emotions. Even if robots express their emotions through facial expressions their users or partners could face a problem perceiving the subtle differences in a given emotion. The subtle change of emotion is difficult to perceive through facial expressions and hence we selected several representative facial expressions that people can understand easily. Coinciding basic emotional sounds with the facial expression of robots is hence an important issue. We performed the experiment to test the whether the basic emotional sounds of happiness sadness and fear coincide with the corresponding facial expressions. We then compared the results of the experiment against either basic emotional sounds or facial expressions with both sounds and facial expression. The experiment on the coincidence of sounds and facial expressions was performed on the same 20 participants. Since the entire robot system is still in its developmental stage we conducted the experiments using laptops on which we displayed the facial expressions of happiness sadness and fear following which we played the music composed as part of the preliminary experiment. Figure 8 shows the three facial expressions we employed for the experiment. Table 2 shows the results on the coincidence of musical sounds and the facial .