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3D reconstruction from structured light field by Fourier transformation profilometry
Author(s): Ping Zhou; Yuting Zhang; Yunlei Yu; Weijia Cai; Guangquan Zhou
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Paper 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.

Paper Details

Date Published: 18 December 2019
PDF: 7 pages
Proc. SPIE 11338, AOPC 2019: Optical Sensing and Imaging Technology, 113381K (18 December 2019); doi: 10.1117/12.2544058
Show Author Affiliations
Ping Zhou, Southeast Univ. (China)
Yuting Zhang, Southeast Univ. (China)
Yunlei Yu, Southeast Univ. (China)
Weijia Cai, Southeast Univ. (China)
Guangquan Zhou, Southeast Univ. (China)


Published in SPIE Proceedings Vol. 11338:
AOPC 2019: Optical Sensing and Imaging Technology
John E. Greivenkamp; Jun Tanida; Yadong Jiang; HaiMei Gong; Jin Lu; Dong Liu, Editor(s)

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