3D reconstruction of moving object by double sampling based on phase shifting profilometry

Qinghui Zhang; Hao Li; Lei Lu Sr.; Wei Pan; Zhilong Su; Mengya Zhang; Pengtao Lv

doi:10.1117/12.2666843

4 April 2023 3D reconstruction of moving object by double sampling based on phase shifting profilometry

Qinghui Zhang, Hao Li, Lei Lu Sr., Wei Pan, Zhilong Su, Mengya Zhang, Pengtao Lv

Proceedings Volume 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications; 126177F (2023) https://doi.org/10.1117/12.2666843
Event: 9th Symposium on Novel Photoelectronic Detection Technology and Applications (NDTA 2022), 2022, Hefei, China

Abstract

When using traditional phase-shift profilometry for 3D measurement, it is necessary to keep the measured object static during the shooting process. When the measured object is moving, errors will occur if the projection and capture of the fringe image is not fast enough. This paper proposes a new method to reconstruct the moving object by double sampling. A trigger control device is applied to the camera and projector, which ensures that after each projection, two consecutive images are captured before the next projection. Then, the phase information is retrieved by analyzing the relationship between the motion and fringe patterns. Finally, the moving object is retrieved successfully. The proposed method increased the frame rate of the moving object reconstruction.

Citation Download Citation

Qinghui Zhang, Hao Li, Lei Lu Sr., Wei Pan, Zhilong Su, Mengya Zhang, and Pengtao Lv "3D reconstruction of moving object by double sampling based on phase shifting profilometry", Proc. SPIE 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications, 126177F (4 April 2023); https://doi.org/10.1117/12.2666843

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KEYWORDS

Fringe analysis

Silicon nitride

Phase shifts

3D metrology

Optics

Phase shifting

Reconstruction algorithms

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