Analysis of solving the point correspondence problem by trifocal tensor for real-time phase measurement profilometry

Kai Zhong; Zhongwei Li; Yusheng Shi; Congjun Wang

doi:10.1117/12.929211

13 September 2012 Analysis of solving the point correspondence problem by trifocal tensor for real-time phase measurement profilometry

Kai Zhong, Zhongwei Li, Yusheng Shi, Congjun Wang

Author Affiliations +

Proceedings Volume 8493, Interferometry XVI: Techniques and Analysis; 849311 (2012) https://doi.org/10.1117/12.929211
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

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.

Citation Download Citation

Kai Zhong, Zhongwei Li, Yusheng Shi, and Congjun Wang "Analysis of solving the point correspondence problem by trifocal tensor for real-time phase measurement profilometry", Proc. SPIE 8493, Interferometry XVI: Techniques and Analysis, 849311 (13 September 2012); https://doi.org/10.1117/12.929211

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