ClearBoard: a seamless medium for shared drawing and conversation with eye contact
CHI '92 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Portholes: supporting awareness in a distributed work group
CHI '92 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Multiparty videoconferencing at virtual social distance: MAJIC design
CSCW '94 Proceedings of the 1994 ACM conference on Computer supported cooperative work
A comparison of face-to-face and distributed presentations
CHI '95 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Teaching and learning as multimedia authoring: the classroom 2000 project
MULTIMEDIA '96 Proceedings of the fourth ACM international conference on Multimedia
Passive capture and structuring of lectures
MULTIMEDIA '99 Proceedings of the seventh ACM international conference on Multimedia (Part 1)
Auto-summarization of audio-video presentations
MULTIMEDIA '99 Proceedings of the seventh ACM international conference on Multimedia (Part 1)
Comparing presentation summaries: slides vs. reading vs. listening
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Presenting to local and remote audiences: design and use of the TELEP system
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Multibrowsing: Moving Web Content across Multiple Displays
UbiComp '01 Proceedings of the 3rd international conference on Ubiquitous Computing
Evolving Use of A System for Education at a Distance
HICSS '00 Proceedings of the 33rd Hawaii International Conference on System Sciences-Volume 3 - Volume 3
Remote conversations: the effects of mediating talk with technology
Human-Computer Interaction
Leveraging the asymmetric sensitivity of eye contact for videoconference
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
An immersive 3D video-conferencing system using shared virtual team user environments
Proceedings of the 4th international conference on Collaborative virtual environments
Achieving effective floor control with a low-bandwidth gesture-sensitive videoconferencing system
Proceedings of the tenth ACM international conference on Multimedia
A low-latency lip-synchronized videoconferencing system
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The interactive shared educational environment: user interface, system architecture and field study
Proceedings of the 3rd ACM/IEEE-CS joint conference on Digital libraries
Computation and performance issues In coliseum: an immersive videoconferencing system
MULTIMEDIA '03 Proceedings of the eleventh ACM international conference on Multimedia
Design of a multi-sender 3D videoconferencing application over an end system multicast protocol
MULTIMEDIA '03 Proceedings of the eleventh ACM international conference on Multimedia
Visualizing the pulse of a classroom
MULTIMEDIA '03 Proceedings of the eleventh ACM international conference on Multimedia
Understanding performance in coliseum, an immersive videoconferencing system
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
DIS '06 Proceedings of the 6th conference on Designing Interactive systems
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
Towards multi-site collaboration in tele-immersive environments
Proceedings of the 15th international conference on Multimedia
Attention by proxy? issues in audience awareness for webcasts to distributed groups
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Transparent eye contact and gesture videoconference
International Journal of Wireless and Mobile Computing
MM '09 Proceedings of the 17th ACM international conference on Multimedia
MobileTI: a portable tele-immersive system
MM '09 Proceedings of the 17th ACM international conference on Multimedia
End System Multicast routing for multi-party videoconferencing applications
Computer Communications
Enabling multi-party 3D tele-immersive environments with ViewCast
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
Virtual post-its: visual label extraction, attachment, and tracking for teleconferencing
ICVS'03 Proceedings of the 3rd international conference on Computer vision systems
Webcasting made interactive: integrating real-time videoconferencing in distributed learning spaces
Proceedings of the 2007 conference on Human interface: Part II
Subjective impression of variations in layer encoded videos
IWQoS'03 Proceedings of the 11th international conference on Quality of service
Enabling multiparty 3D tele-immersive environments with ViewCast
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
The FishbowlTM: degrees of engagement in global teamwork
EG-ICE'06 Proceedings of the 13th international conference on Intelligent Computing in Engineering and Architecture
Enabling 'togetherness' in high-quality domestic video
Proceedings of the 20th ACM international conference on Multimedia
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We built a videoconference system called the Virtual Auditorium to support dialog-based distance learning. The instructor can see dozens of students on a tiled wall-sized display and establish eye contact with any student. Telephone-quality audio and television-quality video can be streamed using commodity codecs such as wavelet and MPEG-4. Support for stream migration allows a seamless user interface to span the multiple computers driving the display wall..We performed user studies on the auditorium parameters. We found that the optimal display wall size must balance two contradictory requirements: subjects prefer larger videos for seeing facial expressions and smaller videos for seeing everyone without head movement. Ideally, each video should have a field of view that spans 14 degrees, which corresponds to a slightly larger than life-size image. At the very least, each video should have a field of view of 6 degrees. We found that a video window should be less than 2.7 degrees horizontally and 9 degrees vertically from the camera in order to maintain the appearance of eye contact for the remote viewer. In addition, we describe a previously unreported gaze phenomenon: a person's expectation determines his perception of eye contact under ambiguous conditions.