Disk-based storage for scalable video

Edward Chang; Avideh Zakhor

doi:10.1117/12.264289

24 January 1997 Disk-based storage for scalable video

Edward Chang, Avideh Zakhor

Proceedings Volume 3020, Multimedia Computing and Networking 1997; (1997) https://doi.org/10.1117/12.264289
Event: Electronic Imaging '97, 1997, San Jose, CA, United States

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.

Citation Download Citation

Edward Chang and Avideh Zakhor "Disk-based storage for scalable video", Proc. SPIE 3020, Multimedia Computing and Networking 1997, (24 January 1997); https://doi.org/10.1117/12.264289

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