Realization of an alpha-trimmed mean filter on the threshold decomposition architecture

Chee-Hung Henry Chu; Daryoush H. Razi

doi:10.1117/12.172578

1 May 1994 Realization of an α-trimmed mean filter on the threshold decomposition architecture

Chee-Hung Henry Chu, Daryoush H. Razi

Proceedings Volume 2180, Nonlinear Image Processing V; (1994) https://doi.org/10.1117/12.172578
Event: IS&T/SPIE 1994 International Symposium on Electronic Imaging: Science and Technology, 1994, San Jose, CA, United States

Abstract

The realization of the (alpha) -trimmed mean filter on the threshold decomposition architecture is described in this paper. In the threshold decomposition architecture, an input sequence is thresholded at different levels to form a number of binary sequences. A decision is made at each level to determine whether the signal should be above the associated threshold level. The results at all levels are then combined to form the filter output. The decision rule used is the distinguishing feature of an individual filter; the current implementation of the (alpha) -trimmed mean filter is based on using a threshold logic function as the decision rule, thus allowing the decision rule to output multiple values. The statistical properties of the (alpha) -trimmed mean filter are analyzed based on this realization.

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Chee-Hung Henry Chu and Daryoush H. Razi "Realization of an α-trimmed mean filter on the threshold decomposition architecture", Proc. SPIE 2180, Nonlinear Image Processing V, (1 May 1994); https://doi.org/10.1117/12.172578

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