Digital fringe profilometry based on triangular fringe patterns and spatial shift estimation

Pu Cao; Jiangtao Xi; Yanguang Yu; Qinghua Guo

doi:10.1117/12.2049791

28 May 2014 Digital fringe profilometry based on triangular fringe patterns and spatial shift estimation

Pu Cao, Jiangtao Xi, Yanguang Yu, Qinghua Guo

Proceedings Volume 9110, Dimensional Optical Metrology and Inspection for Practical Applications III; 91100C (2014) https://doi.org/10.1117/12.2049791
Event: SPIE Sensing Technology + Applications, 2014, Baltimore, MD, United States

Abstract

In this paper, we present a new approach for the 3D measurement using digital fringe projection. Instead of sinusoidal fringe patterns and the traditional phase shift detection, the proposed technique makes use of triangular patterns and the spatial shift estimation for extract the 3D shape. The proposed technique is advantageous not only by improved immunization to nonlinear distortion associated with digital projections, but also reduced computational burden for its implementation. Theoretical analysis and experimental results are also presented to confirm the effectiveness of the proposed technique.

Citation Download Citation

Pu Cao, Jiangtao Xi, Yanguang Yu, and Qinghua Guo "Digital fringe profilometry based on triangular fringe patterns and spatial shift estimation", Proc. SPIE 9110, Dimensional Optical Metrology and Inspection for Practical Applications III, 91100C (28 May 2014); https://doi.org/10.1117/12.2049791

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