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The Future of Virtual Collaboration. Internet2 Virtual Panel January 24, 2002. Lawrence A. Rowe Computer Science Division – EECS University of California, Berkeley http://bmrc.berkeley.edu/~larry. Assumptions. Computation cycles are free Install multiple computers to provide services

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the future of virtual collaboration

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

assumptions
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
problems or opportunities
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
research problems
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
problems cont
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
my opinion
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
research links
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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