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Proceedings Paper

Smoothing and buffering for delivery of prerecorded compressed video
Author(s): Wu-chi Feng; Stuart Sechrest
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Paper Abstract

The transportation of compressed video data generally requires the network to adapt to large fluctuations in bandwidth requirements if the quality of video is to remain constant. Techniques that use averaging for smoothing video data, such as those found in video conferences, allows for some smoothing at the expense of delay. With video-on-demand systems on the horizon, smoothing techniques for prerecorded video data are necessary for the efficient use of network resources. Simply extending algorithms that smooth via averaging for use in video playback cannot smooth the burstiness in bandwidth requirements without using large amounts of buffering. In this paper, we introduce the notion of critical bandwidth allocation which allows for the most effective use of buffering while allowing for long durations between bandwidth increase requests. A comparison between critical bandwidth allocation algorithms and other smoothing algorithms is presented.

Paper Details

Date Published: 14 March 1995
PDF: 9 pages
Proc. SPIE 2417, Multimedia Computing and Networking 1995, (14 March 1995); doi: 10.1117/12.206049
Show Author Affiliations
Wu-chi Feng, Univ. of Michigan (United States)
Stuart Sechrest, Univ. of Michigan (United States)

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

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