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Proceedings Paper

Model for packet image communication in a centralized distribution system
Author(s): Habib H. Torbey; Zhensheng Zhang
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Paper Abstract

The distribution of the compressed image data volume for a lossless image coder is derived from the distribution of the uncompressed images and that of the coder's compression ratio. This result is used to identify the parameters of an on-off statistical source model characterizing the still image source as seen by the network. The on-off source model gives rise to a batch arrival queueing model to represent image transmission over a network in the situation where there exists a mismatch in the speed of the different components of an imaging system. For a centralized distribution system in particular, the model arises when the transmission queueing delay is the bottleneck at the database and when the arrival rate at a network node is much faster than the transmission node. While the overall time delays can be kept very low, the average buffer sizes build up considerably prompting the need for flow control and for queueing the image requests rather than the image data at the database.

Paper Details

Date Published: 1 November 1991
PDF: 17 pages
Proc. SPIE 1605, Visual Communications and Image Processing '91: Visual Communication, (1 November 1991); doi: 10.1117/12.50297
Show Author Affiliations
Habib H. Torbey, Columbia Univ. (United States)
Zhensheng Zhang, Columbia Univ. (United States)

Published in SPIE Proceedings Vol. 1605:
Visual Communications and Image Processing '91: Visual Communication
Kou-Hu Tzou; Toshio Koga, Editor(s)

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