Real-time 3D shape measurement by fringe projection and GPU parallel computing

被引：0
|
作者：
Zhao, Huijie [1 ,2 ]
Xu, Yang [1 ]
Jiang, Hongzhi [1 ]
Diao, Xiaochun [1 ]
Liu, Chenghao [1 ]
Xing, Mingyi [1 ]
机构：
[1] Beihang Univ, Sch Instrumentat Sci & Opto elect Engn, Key Lab Precis Optomechatron Technol, Minist Educ, Beijing 100191, Peoples R China
[2] Beihang Univ, Qingdao Res Inst, Qingdao 266101, Peoples R China
来源：
TENTH INTERNATIONAL SYMPOSIUM ON PRECISION ENGINEERING MEASUREMENTS AND INSTRUMENTATION | 2019年 / 11053卷
基金：
中国国家自然科学基金;
关键词：
3D shape measurement; Fringe projection; Phase unwrapping; GPU parallel computing;
D O I：
10.1117/12.2512171
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
When fringe projection profilometry is applied for real-time 3D shape measurement, several problems remain to be solved such as multi-wavelength heterodyne phase unwrapping is sensitive to motion and the computation cost is high. In this paper, a real-time 3D shape measurement method with optimized multi-wavelength heterodyne phase unwrapping and GPU parallel computing is proposed. Experimental results demonstrate that the proposed method can acquire 3D shape at 40 fps. Dynamic object with discontinuities can be measured and the phase unwrapping mistakes are eliminated by smoothing the phase of beat frequency during multi-wavelength heterodyne phase unwrapping.
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收藏
页数：6
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