CamRay: Camera Arrays Support Remote Collaboration on Wall-Sized Displays

Ignacio Avellino 1, 2, 3 Cédric Fleury 1, 2, 3 Wendy Mackay 1, 2, 3 Michel Beaudouin-Lafon 1, 2, 3
2 EX-SITU - Extreme Interaction
LRI - Laboratoire de Recherche en Informatique, Inria Saclay - Ile de France
Abstract : Remote collaboration across wall-sized displays creates a key challenge: how to support audio-video communication among users as they move in front of the display. We present CamRay, a platform that uses camera arrays embedded in wall-sized displays to capture video of users and present it on remote displays according to the users’ positions. We investigate two settings: in Follow-Remote, the position of the video window follows the position of the remote user; in Follow-Local, the video window always appears in front of the local user. We report the results of a controlled experiment showing that with Follow-Remote, participants are faster, use more deictic instructions, interpret them more accurately, and use fewer words. However, some participants preferred the virtual face-to-face created by Follow-Local when checking for their partners’ understanding. We conclude with design recommendations to support remote collaboration across wall-sized displays.
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Ignacio Avellino, Cédric Fleury, Wendy Mackay, Michel Beaudouin-Lafon. CamRay: Camera Arrays Support Remote Collaboration on Wall-Sized Displays. CHI '17, May 2017, Denver, United States. pp.6718 - 6729, ⟨10.1145/3025453.3025604⟩. ⟨hal-01544645⟩

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