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Proceedings Paper

Analysis of solving the point correspondence problem by trifocal tensor for real-time phase measurement profilometry
Author(s): Kai Zhong; Zhongwei Li; Yusheng Shi; Congjun Wang
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Paper Abstract

In real-time phase measurement profilometry (PMP) systems, finding point correspondence between phase-maps of cameras or camera and projector is the key technology for 3D reconstruction. A novel method based on trifocal tensor constrain, which can be directly implemented on wrapped phase-map and speed up by parallel computing technology, is present. But fringe number, images noise and system non-linear response will lead to false correspondence. The influence of these factors is deeply analyzed, and a feasible way is proposed to reject error candidate points. Finally, this method indicated a satisfactory performance in the experiment.

Paper Details

Date Published: 13 September 2012
PDF: 10 pages
Proc. SPIE 8493, Interferometry XVI: Techniques and Analysis, 849311 (13 September 2012); doi: 10.1117/12.929211
Show Author Affiliations
Kai Zhong, Huazhong Univ. of Science and Technology (China)
Zhongwei Li, Huazhong Univ. of Science and Technology (China)
Yusheng Shi, Huazhong Univ. of Science and Technology (China)
Congjun Wang, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 8493:
Interferometry XVI: Techniques and Analysis
Joanna Schmit; Katherine Creath; Catherine E. Towers; Jan Burke, Editor(s)

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