3D surface profile measurement using LCD fringe projection

Chenggen Quan; Xiaoyuan He; Cho Jui Tay; Huai Min Shang

doi:10.1117/12.429629

13 June 2001 3D surface profile measurement using LCD fringe projection

Chenggen Quan, Xiaoyuan He, Cho Jui Tay, Huai Min Shang

Proceedings Volume 4317, Second International Conference on Experimental Mechanics; (2001) https://doi.org/10.1117/12.429629
Event: Second International Conference on Experimental Mechanics, 2000, Singapore, Singapore

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.

Citation Download Citation

Chenggen Quan, Xiaoyuan He, Cho Jui Tay, and Huai Min Shang "3D surface profile measurement using LCD fringe projection", Proc. SPIE 4317, Second International Conference on Experimental Mechanics, (13 June 2001); https://doi.org/10.1117/12.429629

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