August 2001
Intermediate to advanced
700 pages
53h 4m
English
Content preview from Readings in Multimedia Computing and Networking
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Introduction to Videoconferencing
Kevin Jeffay, University of North Carolina - Chapel Hill
VIDEOCONFERENCING applications are an important area of study in multimedia computing and networking for two reasons. First and foremost, videoconferencing is a challenging real-time systems problem. By its nature, a videoconference is an interactive application with stringent latency and throughput requirements. In the ideal world, the video signal would be sent at full-motion video rates (e.g., 30 frames per second for NTSC video), with sufficient resolution to create some semblance of the illusion of presence or co-location with remote conferees. Audio would be delivered reliably with an end-to-end delay approximating that of a telephone call ...
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