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Proceedings Paper

Network support for lossless digital image browsing
Author(s): Colin Parris; Hui Zhang
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Paper Abstract

There are two main characteristics that distinguish ordinary video applications from lossless digital image browsing: first, digital images used in medical imaging and scientific visualization applications usually can not tolerate any compromise of image quality; second, unlike live or playback video, browsing implies different playback rates. With these differences, it is not longer possible to increase the browsing speed by dropping alternate frames or by increasing compression ratios as done in video applications. From a network's point of view, the image browsing applications send data at different rates during different periods of time. These type of applications require guaranteed performance service in terms of bandwidth, end-to-end delay and jitter, however, their performance requirements change during the lifetime of the application. Most of the existing solutions that support guaranteed performance services require resource reservation on a per-connection basis and the amount of resources reserved during the lifetime of the connection is usually fixed. The static nature of this type of resource reservation does not easily accommodate the dynamics inherent in applications like lossless image browsing. In this paper, we propose a new abstraction called Dynamic Connection Management (DCM) within the framework of guaranteed performance communications. The DCM scheme provides the network with the ability to modify the performance parameters of any active connection subject to a modification contract. We describe the DCM scheme, validate the design with simulation experiments, and present a prototype implementation within the context of the Sequoia 2000 project.

Paper Details

Date Published: 1 April 1994
PDF: 12 pages
Proc. SPIE 2188, High-Speed Networking and Multimedia Computing, (1 April 1994); doi: 10.1117/12.171708
Show Author Affiliations
Colin Parris, Univ. of California/Berkeley (United States)
Hui Zhang, Univ. of California/Berkeley (United States)


Published in SPIE Proceedings Vol. 2188:
High-Speed Networking and Multimedia Computing
Arturo A. Rodriguez; Mon-Song Chen; Jacek Maitan, Editor(s)

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