Model for packet image communication in a centralized distribution system

Habib H. Torbey; Zhensheng Zhang

doi:10.1117/12.50297

1 November 1991 Model for packet image communication in a centralized distribution system

Habib H. Torbey, Zhensheng Zhang

Proceedings Volume 1605, Visual Communications and Image Processing '91: Visual Communication; (1991) https://doi.org/10.1117/12.50297
Event: Visual Communications, '91, 1991, Boston, MA, United States

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.

Citation Download Citation

Habib H. Torbey and Zhensheng Zhang "Model for packet image communication in a centralized distribution system", Proc. SPIE 1605, Visual Communications and Image Processing '91: Visual Communication, (1 November 1991); https://doi.org/10.1117/12.50297

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