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Proceedings Paper

Fringe projection method for measuring 3D profile and position of a moving object
Author(s): Fan Yuan; Deqiang Song; LiJiang Zeng
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Paper Abstract

It is difficult to measure three dimension profile and positions of a moving object by using only one group of grating projection fringes because the absolute position of the object couldn't be determined. We introduce two reference-tracking fringes into the conventional fringe pattern projection system, from which we determine the moving direction and absolute coordinate of the moving object. The 3D profile of the object is determined from the distorted fringes, and the absolute coordinate of that is determined from the angle of the reference-tracking fringes. This method enables us to track a moving object, and measure it with a large measurement range.

Paper Details

Date Published: 9 October 2000
PDF: 4 pages
Proc. SPIE 4221, Optical Measurement and Nondestructive Testing: Techniques and Applications, (9 October 2000); doi: 10.1117/12.402627
Show Author Affiliations
Fan Yuan, Tsinghua Univ. (China)
Deqiang Song, Tsinghua Univ. (China)
LiJiang Zeng, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 4221:
Optical Measurement and Nondestructive Testing: Techniques and Applications
FeiJun Song; Frank Chen; Michael Y.Y. Hung; H.M. Shang, Editor(s)

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