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Proceedings Paper

Displacement measurement based on Young's experiment
Author(s): Zuobin Wang; Peter John Bryanston-Cross; Hongwei Long
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Paper Abstract

This paper presents a method of displacement measurement that is based on Young's experiment. In the method, the displacement is determined according to the fringe spacing equation from Young's experiment. The method is examined in a fiber-optic interferometer system and a subpixel resolution of measurement is achieved from 100 X 152 pixel image patches using fringe pattern matching together with the polynomial curve fitting method. The effect of the number of discrete grey levels of an image on the accuracy of displacement measurement is also discussed. The computer simulation and experiment have shown that it is possible to measure displacement in a machine vision system in some cases using this method.

Paper Details

Date Published: 18 September 1996
PDF: 8 pages
Proc. SPIE 2782, Optical Inspection and Micromeasurements, (18 September 1996); doi: 10.1117/12.250812
Show Author Affiliations
Zuobin Wang, Univ. of Warwick (United Kingdom)
Peter John Bryanston-Cross, Univ. of Warwick (United Kingdom)
Hongwei Long, Univ. of Warwick (United Kingdom)


Published in SPIE Proceedings Vol. 2782:
Optical Inspection and Micromeasurements
Christophe Gorecki, Editor(s)

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