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Proceedings Paper

Disk-based storage for scalable video
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Paper Abstract

In this paper, we consider the placement of scalable video data on single and multiple disks for storage and real-time retrieval. For the single disk case, we extend the principle of constant frame grouping form CBR to VBR scalable video data. When the number of admitted users exceeds the server capacity, the rate of data sent to each user is reduced to relieve the disk system overload, offering a graceful degradation in comparison with nonscalable data. We examine the qualities of video reconstructions obtained from a real disk video server and find the scalable video more visually appealing. For the multiple disk scenario, we prove that periodic interlacing results in lower system delay than striping in a video server using round-robin scheduling. We verify the results through detailed simulation of a four- disk array.

Paper Details

Date Published: 24 January 1997
PDF: 13 pages
Proc. SPIE 3020, Multimedia Computing and Networking 1997, (24 January 1997); doi: 10.1117/12.264289
Show Author Affiliations
Edward Chang, Univ. of California/Berkeley (United States)
Avideh Zakhor, Univ. of California/Berkeley (United States)


Published in SPIE Proceedings Vol. 3020:
Multimedia Computing and Networking 1997
Martin Freeman; Paul Jardetzky; Harrick M. Vin, Editor(s)

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