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Proceedings Paper

3D surface profile measurement using LCD fringe projection
Author(s): Chenggen Quan; Xiaoyuan He; Cho Jui Tay; Huai Min Shang
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Paper Abstract

This paper describes the use of optical fringe projection method for 3D surface profile measurement of object. In this method, sinusoidal linear fringes are projected on the object surface by a programmable liquid crystal display projector. The image of the fringe patter in captured by a CCD camera and processed by phase-shifting techniques. A simple procedure is described which enables calibration of the optical set-up for subsequent quantitative measurement of unknown object shapes. This method is relatively simple and accurate, and is capable of conducting fully automated measurements.

Paper Details

Date Published: 13 June 2001
PDF: 6 pages
Proc. SPIE 4317, Second International Conference on Experimental Mechanics, (13 June 2001); doi: 10.1117/12.429629
Show Author Affiliations
Chenggen Quan, National Univ. of Singapore (Singapore)
Xiaoyuan He, Southeast Univ. (Singapore)
Cho Jui Tay, National Univ. of Singapore (Singapore)
Huai Min Shang, National Univ. of Singapore (Singapore)

Published in SPIE Proceedings Vol. 4317:
Second International Conference on Experimental Mechanics
Fook Siong Chau; Chenggen Quan, Editor(s)

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