Minimum movement matters: impact of robot-mounted cameras on social telepresence

Authors:
Hideyuki Nakanishi;Yuki Murakami;Daisuke Nogami;Hiroshi Ishiguro
Affiliations:
Osaka University, Suita, Japan;Osaka University, Suita, Japan;Osaka University, Suita, Japan;Osaka University, Suita, Japan
Venue:
Proceedings of the 2008 ACM conference on Computer supported cooperative work
Year:
2008

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Abstract

Recently, various robots capable of having a video chat with distant people have become commercially available. This paper shows that movement of these robots enhances distant people's presence that the robot operator feels. We conducted an experiment to compare the degrees of social telepresence produced by fixed, rotatable, movable, and automatically moving cameras. In this experiment we found that forward-backward movement of the camera significantly contributed to social telepresence, while rotation did not. We also found that this effect disappeared when the camera moved automatically. We propose the user-controllable movement of cameras as a fundamental function for video-based communication systems.