Directed graph representation for root-signal set of median filters
Article Abstract:
Directed graph representation for the root-signal set of median filters is described. Median filtering is a simple digital technique for smoothing signals. Median filters are used in speech processing, image processing, and data compression. A main characteristic is the mapping of a class of input signals into an associated set of root signals. A root signal is an invariant signal to the median filter. Two approaches for the directed graphs are shown: one for roots with fewer levels and longer length; and the other for roots with more levels and of shorter length.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1987
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Proceedings letters
Article Abstract:
An approximation is given for the mean of the traffic overflow from a loss system when the arrival traffic consists of a sequence of step functions. The amount of traffic lost is a measure of congestion in a communications system. Two different arrival traffic patterns are given. The approximation method gives satisfactory results compared to simulations. Moreover, the approximation method requires little computer space and time, while simulations may take several CPU hours.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1987
User Contributions:
Comment about this article or add new information about this topic: