栅栏
光学
计算机科学
相(物质)
运动(物理)
观测误差
轮廓仪
计算机视觉
人工智能
还原(数学)
算法
物理
数学
几何学
量子力学
统计
表面粗糙度
作者
Wenbo Guo,Zhoujie Wu,Yueyang Li,Yihang Liu,Qican Zhang
出处
期刊:Optics Express
[The Optical Society]
日期:2020-08-27
卷期号:28 (18): 26882-26882
被引量:30
摘要
Phase-shifting profilometry has been increasingly sought and applied in dynamic three-dimensional (3D) shape measurement. However, the object motion will lead to extra phase shift error and thus measurement error. In this paper, a real-time 3D shape measurement method based on dual-frequency composite phase-shifting grating and motion-induced error reduction is proposed for a complex scene containing dynamic and static objects. The proposed method detects the motion region of a complex scene through the phase relations of the dual-frequency composite grating and reduces the motion-induced error with the combination of the phase calculated by a phase-shifting algorithm and the phase extracted by Fourier fringe analysis. It can correctly reconstruct the 3D shape of a complex dynamic scene and ensure high measurement accuracy of its static object as well. With the aid of the phase-shifting image ordering approach, the dynamic 3D shape of complex scenes can be reconstructed and the motion-induced error can also be suppressed in real time. Experimental results well proved that the proposed method is effective and practical.
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