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Dynamic 3D measurement error compensation technology based on phase-shifting and fringe projection

CAO Zhi-rui

曹智睿. 基于相移条纹投影的动态3D测量误差补偿技术[J]. 中国光学(中英文). doi: 10.37188/CO.EN.2022-0004
引用本文: 曹智睿. 基于相移条纹投影的动态3D测量误差补偿技术[J]. 中国光学(中英文). doi: 10.37188/CO.EN.2022-0004
CAO Zhi-rui. Dynamic 3D measurement error compensation technology based on phase-shifting and fringe projection[J]. Chinese Optics. doi: 10.37188/CO.EN.2022-0004
Citation: CAO Zhi-rui. Dynamic 3D measurement error compensation technology based on phase-shifting and fringe projection[J]. Chinese Optics. doi: 10.37188/CO.EN.2022-0004

基于相移条纹投影的动态3D测量误差补偿技术

详细信息
  • 中图分类号: TP394.1;TH691.9

Dynamic 3D measurement error compensation technology based on phase-shifting and fringe projection

doi: 10.37188/CO.EN.2022-0004
Funds: Supported by this paper is supported by the natural science foundation of Jilin Province, and the award number is 20200201008JC.
More Information
    Author Bio:

    CAO Zhi-rui (1983—), PhD, Associate Professor, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences. His research interests are on Optical measurement techniques. E-mail: caozhirui@ciomp.ac.cn

    Corresponding author: caozhirui@ciomp.ac.cn
  • 摘要:

    在基于相移条纹投影的动态三维测量中,不同条纹图像中物点、像点和相位之间的理想对应关系被破坏,此时应用传统的相位公式会产生很大的测量误差。为了减小动态三维测量误差,首先分析了该误差的基本原理,并将该误差等效为不同条纹图像之间的相移误差;然后,提出了一种动态三维测量误差补偿方法,该方法将基于最小二乘的先进迭代算法和改进的傅里叶辅助相移法相结合,实现了随机步长相移量和相位的高精度计算。对精加工铝板的实测结果表明,动态三维测量误差补偿技术可使动态三维测量的均方误差降低一个以上数量级,补偿后的动态三维测量精度可达0.15 mm 以上。

     

  • Figure 1.  The 3D measurement system based on phase-shifting and fringe projection

    Figure 2.  The equivalent phase-shifting errors of the same pixel coordinate position

    Figure 3.  Rectangular window filter

    Figure 4.  Double elliptical window filter

    Figure 5.  The process of the advanced iterative algorithm based on least squares

    Figure 6.  The measurement system

    Figure 7.  The static measurement results

    Figure 8.  The uncompensated dynamic 3D measurement results

    Figure 9.  The compensated dynamic 3D measurement results

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出版历程
  • 收稿日期:  2022-03-10
  • 录用日期:  2022-05-23
  • 网络出版日期:  2022-09-01

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