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Proceedings Paper

Development of a fast and accurate color-encoded digital fringe projection profilometry
Author(s): Z. Liu; C. Quan; C. J. Tay
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Paper Abstract

In the past two decades, fringe projection profilometry (FPP) has been widely used in three-dimensional (3D) profile measurement for its fast speed and high accuracy. As a branch of FPP, color-encoded digital fringe projection profilometry (CDFPP) has been applied to surface profile measurement. CDFPP has the advantage of being fast speed, non-contact and full-field. It is one of the most important dynamic 3D profile measurement techniques. However, due to color cross-talk and gamma distortions of electro-optical devices, phase errors arise in using conventional phase-shifting algorithms to retrieve the phase in CDFPP. Therefore, it is important to develop methods for phase error suppression in CDFPP and thus realizing fast and accurate profile measurement. In this paper, a phase error suppression technique is proposed to overcome color cross-talk and gamma distortions. The proposed method is able to carry out fast and accurate surface profile measurement. The real data experimental results show that the proposed method can effectively suppress phase errors and achieve accurate measurements in CDFPP.

Paper Details

Date Published: 22 June 2013
PDF: 8 pages
Proc. SPIE 8769, International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013), 87692E (22 June 2013); doi: 10.1117/12.2018756
Show Author Affiliations
Z. Liu, Beihang Univ. (China)
National Univ. of Singapore (Singapore)
C. Quan, National Univ. of Singapore (Singapore)
C. J. Tay, National Univ. of Singapore (Singapore)


Published in SPIE Proceedings Vol. 8769:
International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013)
Chenggen Quan; Kemao Qian; Anand Asundi, Editor(s)

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