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A Fast Algorithm for Determining the Gaussian Filtered Mean Line in Surface Metrology

Published

Author(s)

Y B. Yuan, X F. Qiang, Jun-Feng Song, Theodore V. Vorburger

Abstract

A fast algorithm for assessing the Gaussian filtered mean line was deduced using the central limit theorem and an approximation method. This algorithm only uses simple computer operations such as addition, subtraction and digit shifting, and avoids complicated ones such as multiplication and division, and therefore, can achieve a very high speed and accuracy without phase distortion. A new relationship between the Gaussian filtering method and the classical 2RC filtering method was also established using this algorithm.
Citation
Journal of American Society for Precision Engineering
Volume
24(1)
Issue
No. 1

Keywords

digital filter, Gaussian filter, mean line, surface roughness

Citation

Yuan, Y. , Qiang, X. , Song, J. and Vorburger, T. (2000), A Fast Algorithm for Determining the Gaussian Filtered Mean Line in Surface Metrology, Journal of American Society for Precision Engineering (Accessed February 28, 2024)
Created January 1, 2000, Updated February 19, 2017