FatBear: a nonarithmetic pico filter

Harold G. Longbotham; Mike Johnson; Jack Harris; Redouan Rouzky

doi:10.1117/12.146654

23 June 1993 FatBear: a nonarithmetic pico filter

Harold G. Longbotham, Mike Johnson, Jack Harris, Redouan Rouzky

Proceedings Volume 2030, Image Algebra and Morphological Image Processing IV; (1993) https://doi.org/10.1117/12.146654
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

This paper is but a first step toward a fast, robust, nonarithmetic filtering theory. The following will assume the sampled sequence is from a finite TOS (totally ordered set) S so that any subset (window) of sequence values may be ordered. In addition we will assume the existence of a distance function (metric) on S. This distance function may be as simple as counting but all results presented hold for any TOS with any distance function. In addition a median type operator will be defined that always has as output an element in S, unlike the usual median operator. Implementations will be discussed. It will be shown that implementation involves only a two layer NAND/NOR for ordering and range estimations, and the assumption of counting. Operation counts will be discussed.

Citation Download Citation

Harold G. Longbotham, Mike Johnson, Jack Harris, and Redouan Rouzky "FatBear: a nonarithmetic pico filter", Proc. SPIE 2030, Image Algebra and Morphological Image Processing IV, (23 June 1993); https://doi.org/10.1117/12.146654

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