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Proceedings Paper

Compact fringe projection profilometer
Author(s): Lei Huang; Sian Shing Chng; Cheok Peng Lee; Patrick S. K. Chua; A. Asundi
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Paper Abstract

A compact fringe projection profilometer is recently developed for profiling small objects. A handphone-size microprojector with LED illumination is assembled into our system to minimize the size optical 3D sensor. In our compact 3D shape measurement system, the approaches of phase shifting, temporal phase unwrapping and modified least-squares calibration are utilized to achieve high precision and an easy procedure. The portable system allows for easy and convenient 3D profile measurement to meet the requirements under diverse application conditions, such as profiling small turbine blades in aerospace workshop. Experimental results testify to the robust and reliable performance of this LED micro-projector based FPP system.

Paper Details

Date Published: 14 April 2010
PDF: 6 pages
Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 752256 (14 April 2010); doi: 10.1117/12.851436
Show Author Affiliations
Lei Huang, Nanyang Technological Univ. (Singapore)
Sian Shing Chng, Nanyang Technological Univ. (Singapore)
Cheok Peng Lee, Ngee Ann Polytechnic (Singapore)
Patrick S. K. Chua, Nanyang Technological Univ. (Singapore)
A. Asundi, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 7522:
Fourth International Conference on Experimental Mechanics
Chenggen Quan; Kemao Qian; Anand Krishna Asundi; Fook Siong Chau, Editor(s)

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