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Proceedings Paper

Least-squares phase-height mapping for fringe projection profilometry considering camera lens distortion
Author(s): Lei Huang; Patrick S. K. Chua; A. Asundi
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Paper Abstract

The least-squares method can be utilized in the calibration procedure for fringe projection profilometry to make it easier and more flexible, since the geometric parameters of the system are not to be measured and the precise control of plane moving is not required as well. Furthermore, the system components can be arbitrarily arranged which brings much convenience to practical measurement. With a consideration of camera lens distortion, a modified least-squares phaseheight mapping description is proposed. In this method, camera lens distortion effect is involved into the mathematical description of the system for least-squares estimation to reduce the influence of lens distortion. Both simulation and experiment are demonstrated to show the feasibility and convenience of this modified least-squares phase-height mapping method.

Paper Details

Date Published: 14 April 2010
PDF: 8 pages
Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75220I (14 April 2010); doi: 10.1117/12.851431
Show Author Affiliations
Lei Huang, Nanyang Technological Univ. (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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