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Future Trends in Virtual Collaboration: Enhancing Audio/Video Quality and User Experience for Web Conferencing

Explore the future of virtual collaboration with emphasis on improving audio/video quality, seamless interaction, and production automation. This panel discussion delves into research problems, opportunities, and my personal opinion on emerging standards. Discover how to ride the technology cost curve and support dynamic operations for large conferences and beyond.

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Future Trends in Virtual Collaboration: Enhancing Audio/Video Quality and User Experience for Web Conferencing

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Presentation Transcript

  1. The Future of Virtual Collaboration Internet2 Virtual PanelJanuary 24, 2002 Lawrence A. Rowe Computer Science Division – EECS University of California, Berkeley http://bmrc.berkeley.edu/~larry

  2. Assumptions • Computation cycles are free • Install multiple computers to provide services • Bandwidth will be free • Think about new uses of bandwidth • Use of the Internet • Publication – the web • Communication – email, newsgroups, chat, etc. • Shopping transactions

  3. Problems or Opportunities • Poor audio/video quality • Improve algorithms, use more CPU cycles, and use more network bandwidth • Larry’s mantra: “multiple video streams with varying quality” • Too complex to setup and use • Install permanent facilities • Automate common operations • Build gateway services to support alternative technologies • Too expensive • Ride technology cost curve • Look for integrated solutions

  4. Research Problems • Audio processing • Audio balancing, noise reduction, echo cancellation, spatial imaging, etc. • Seamless interaction • “Sense of Presence” – see all participants • Floor control – as easy to learn and use as raising hand

  5. Problems (cont.) • Production automation • Start/stop • Camera control/stream switching • Special-effects processing • Scale to large conferences? • 4-up video composition for small conferences • Webcasts for large conferences • Something else between? • Support more dynamic operation

  6. My Opinion • Access Grid is emerging standard • More flexible than H.32x conferencing • Hard problems • Operation and control • Remote participation • Audio support and processing • 10-20 years from now… • N-way videoconferencing will ubiquitous like telephones

  7. Research Links • Internet Webcasting Overview • http://bmrc.berkeley.edu/papers/2001/159/ • Lecture Webcasting • http://bmrc.berkeley.edu/papers/bibs-report.html • Berkeley Lecture Webcasting System • http://bmrc.berkeley.edu/projects/lb • RTPtv Technology • http://bmrc.berkeley.edu/papers/rtptv.html

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