Phase shifting fringe profilometry based portable 3D measurement system

CHEN Xin-yu; SUN Fei; FU Li; ZHANG Tai-ning; ZHU Lin-lin

doi:10.3788/OPE.20152313.0105

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Phase shifting fringe profilometry based portable 3D measurement system

更新时间：2020-08-13

- Phase shifting fringe profilometry based portable 3D measurement system
- Optics and Precision Engineering Vol. 23, Issue 10z, Pages: 106-112(2015)
- 作者机构：
  
  沈阳航空航天大学自动化学院,辽宁沈阳,110136
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20152313.0105
  CLC： TB92;O436.1
- Received：03 June 2015，
  
  Revised：30 June 2015，
  
  Published：14 November 2015
- 稿件说明：
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陈新禹, 孙非, 傅莉等. 相移光栅轮廓术的便携式三维测量系统[J]. 光学精密工程, 2015,23(10z): 106-112

CHEN Xin-yu, SUN Fei, FU Li etc. Phase shifting fringe profilometry based portable 3D measurement system[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10z): 106-112
陈新禹, 孙非, 傅莉等. 相移光栅轮廓术的便携式三维测量系统[J]. 光学精密工程, 2015,23(10z): 106-112 DOI： 10.3788/OPE.20152313.0105.

CHEN Xin-yu, SUN Fei, FU Li etc. Phase shifting fringe profilometry based portable 3D measurement system[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10z): 106-112 DOI： 10.3788/OPE.20152313.0105.

摘要

为了实现自由曲面对象的三维形貌测量

搭建了便携式三维视觉测量系统。采用双目立体视觉与相移光栅结合的方式实现了完整三维轮廓数据测量并对系统涉及的主要算法进行了分析。首先

结合双目立体视觉、相位测量术和多频外差法计算出单视局部数据点;然后

使用辅助靶标实现多视数据的初始拼接;最后

对测量数据进行噪声滤除、优化拼接和冗余点滤除等操作

从而获得完整测量数据。通过实验验证了系统的可行性和测量精度

结果表明:系统的测量精度约为0.04 mm

单视测量和计算时间约为10 s

两邻视间的数据处理与完整拼接耗时约为20 s。实验显示该系统能够较快速、完整、高精度地获取物体的三维数据

基本满足一般测量对象的应用需求。

Abstract

A portable 3D visual measurement system based on stereo vision and a phase-shift grating was established to implement global 3D profile measurement for a free-form surface object and some corresponding algorithms were analyzed. Firstly

the local data were calculated by using the stereo vision principles

phase shifting profilometry and a multi-frequency heterodyne method. Then

multi-view registrations were achieved by using a target plane. Finally

global measurements were achieved through noise filtering

optimized registration and redundancy filtering for measurement data and complete data were obtained. The experiments were performed to verify the feasibility and accuracy of the system. Experimental results show that the measurement accuracy is about 0.04 mm;single view measurement costs are approximately 10 s;data processing and registration of two neighbor views consume almost 20 s. It indicates that the system can rapidly and completely acquire 3-D surface data of an object with high precision and it can satisfy the application requirements of general objects.

关键词

Keywords

references

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