Portholes: supporting awareness in a distributed work group
CHI '92 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Your place or mine? Learning from long-term use of audio-video communication
Computer Supported Cooperative Work
Proceedings of the ACM SIGCHI Conference on Human factors in computing systems
Receiver-driven bandwidth adaptation for light-weight sessions
MULTIMEDIA '97 Proceedings of the fifth ACM international conference on Multimedia
Measuring perceived quality of speech and video in multimedia conferencing applications
MULTIMEDIA '98 Proceedings of the sixth ACM international conference on Multimedia
International Journal of Human-Computer Studies
Impact of video frame rate on communicative behaviour in two and four party groups
CSCW '00 Proceedings of the 2000 ACM conference on Computer supported cooperative work
Interaction and outeraction: instant messaging in action
CSCW '00 Proceedings of the 2000 ACM conference on Computer supported cooperative work
Introducing instant messaging and chat in the workplace
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
What is chat doing in the workplace?
CSCW '02 Proceedings of the 2002 ACM conference on Computer supported cooperative work
The character, functions, and styles of instant messaging in the workplace
CSCW '02 Proceedings of the 2002 ACM conference on Computer supported cooperative work
Communicating facial affect: it's not the realism, it's the motion
CHI '00 Extended Abstracts on Human Factors in Computing Systems
ChatScape: a visual informal communication tool in communities
CHI '01 Extended Abstracts on Human Factors in Computing Systems
Achieving effective floor control with a low-bandwidth gesture-sensitive videoconferencing system
Proceedings of the tenth ACM international conference on Multimedia
GROUP '03 Proceedings of the 2003 international ACM SIGGROUP conference on Supporting group work
Categorical imperative NOT: facial affect is perceived continuously
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Sharp or smooth?: comparing the effects of quantization vs. frame rate for streamed video
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The effect of video-augmented chat on collaborative learning with cases
CSCL '05 Proceedings of th 2005 conference on Computer support for collaborative learning: learning 2005: the next 10 years!
Computer-Supported Focusing Interface for Collaborative Learning
Proceedings of the 2007 conference on Supporting Learning Flow through Integrative Technologies
Estimation of collaborators' understanding situations for support knowledge acquisition
International Journal of Computational Intelligence Studies
Immersive round-table interface in collaborative learning
KES'07/WIRN'07 Proceedings of the 11th international conference, KES 2007 and XVII Italian workshop on neural networks conference on Knowledge-based intelligent information and engineering systems: Part III
An online meeting tool for low bandwidth environments
Proceedings of the South African Institute for Computer Scientists and Information Technologists Conference
Understanding user behavior at scale in a mobile video chat application
Proceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing
Orchestration: tv-like mixing grammars applied to video-communication for social groups
Proceedings of the 21st ACM international conference on Multimedia
| Hi-index | 0.00 |
Studies of video conferencing systems generally focus on scenarios where users communicate using an audio channel. However, text chat serves users in a wide variety of contexts, and is commonly included in multimedia conferencing systems as a complement to the audio channel. This paper introduces a prototype application which integrates video and text communication, and describes a formative evaluation of the prototype with 53 users in a social setting. We focus the evaluation on bandwidth and view navigation requirements in order to determine how to better serve users with video chat, and discuss how the findings from this evaluation can inform the design of future video chat applications. Bandwidth requirements are evaluated through user perceptions of video delivered using three different bandwidth schemes. For view navigation, we examine a system that automatically switches the video focus to the current "chatter", instead of requiring users to navigate manually to find the video steam they are interested in viewing.