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Proceedings Paper

Video as a technology for interpersonal communications: a new perspective
Author(s): Steve Whittaker
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Paper Abstract

Some of the most challenging multimedia applications have involved real- time conferencing, using audio and video to support interpersonal communication. Here we re-examine assumptions about the role, importance and implementation of video information in such systems. Rather than focussing on novel technologies, we present evaluation data relevant to both the classes of real-time multimedia applications we should develop and their design and implementation. Evaluations of videoconferencing systems show that previous work has overestimated the importance of video at the expense of audio. This has strong implications for the implementation of bandwidth allocation and synchronization. Furthermore our recent studies of workplace interaction show that prior work has neglected another potentially vital function of visual information: in assessing the communication availability of others. In this new class of application, rather than providing a supplement to audio information, visual information is used to promote the opportunistic communications that are prevalent in face-to-face settings. We discuss early experiments with such connection applications and identify outstanding design and implementation issues. Finally we examine a different class of application 'video-as-data', where the video image is used to transmit information about the work objects themselves, rather than information about interactants.

Paper Details

Date Published: 14 March 1995
PDF: 11 pages
Proc. SPIE 2417, Multimedia Computing and Networking 1995, (14 March 1995); doi: 10.1117/12.206055
Show Author Affiliations
Steve Whittaker, Lotus Development Corp. (United States)


Published in SPIE Proceedings Vol. 2417:
Multimedia Computing and Networking 1995
Arturo A. Rodriguez; Jacek Maitan, Editor(s)

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