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Readings in Multimedia Computing and Networking by Hong Jiang Zhang, Kevin Jeffay

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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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