Laser & Optoelectronics Progress, Volume. 60, Issue 8, 0811024(2023)
High-Precision 3D Shape Measurement Using Spatiotemporal Phase-Shifting Method
The phase-shifting method is a powerful tool for analyzing the phase information of fringe patterns. This paper presents the fundamental principle of the newly developed spatiotemporal phase-shifting method (ST-PSM) and its applications in non-contact three-dimensional shape measurement. The simulation results show that ST-PSM can significantly reduce random noise, and eliminate the influence of nonlinear response and small dynamic range of image sensor on the measurement results. The experimental results show that ST-PSM can perform stable non-contact shape measurement under extremely low exposure conditions.
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Ri Shien, Qinghua Wang, Peng Xia. High-Precision 3D Shape Measurement Using Spatiotemporal Phase-Shifting Method[J]. Laser & Optoelectronics Progress, 2023, 60(8): 0811024
Category: Imaging Systems
Received: Dec. 29, 2022
Accepted: Mar. 1, 2023
Published Online: Apr. 17, 2023
The Author Email: Shien Ri (ri-shien@aist.go.jp)