3D reconstruction from structured light field by Fourier transformation profilometry

Ping Zhou; Yuting Zhang; Yunlei Yu; Weijia Cai; Guangquan Zhou

doi:10.1117/12.2544058

18 December 2019 3D reconstruction from structured light field by Fourier transformation profilometry

Ping Zhou, Yuting Zhang, Yunlei Yu, Weijia Cai, Guangquan Zhou

Proceedings Volume 11338, AOPC 2019: Optical Sensing and Imaging Technology; 113381K (2019) https://doi.org/10.1117/12.2544058
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China

Abstract

In this paper, a three-dimensional (3D) shape measurement method based on structured light field imaging is proposed. Generally, light field imaging is challenging to accomplish the 3D shape measurement accurately, as the slope estimation method based on radiance consistency is inaccurate. Taking into account the special modulation of structured light field, the phase information is derived with Fourier transform profilometry, which is utilized to substitute the phase consistency for the radiance consistency in epipolar image (EPI) at first. Therefore, the 3D coordinates are derived after light field calibration, but the results are coarse due to slope estimation error and need to be corrected. Furthermore, the 3D coordinates refinement is performed based on relationship between the structured light field image and DMD image of the projector, which allows to improve the performance of the 3D shape measurement. The necessary light field camera calibration is described to generalize its application. Subsequently, the effectiveness of the proposed method is demonstrated with a sculpture and compared to the results of a conventional PMP system.

Citation Download Citation

Ping Zhou, Yuting Zhang, Yunlei Yu, Weijia Cai, and Guangquan Zhou "3D reconstruction from structured light field by Fourier transformation profilometry", Proc. SPIE 11338, AOPC 2019: Optical Sensing and Imaging Technology, 113381K (18 December 2019); https://doi.org/10.1117/12.2544058

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