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首页> 外文会议>AOPC 2017: 3D Measurement Technology for Intelligent Manufacturing >Efficient phase extraction from three random interferograms based on Lissajous figure and ellipse fitting method
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Efficient phase extraction from three random interferograms based on Lissajous figure and ellipse fitting method

机译：基于李沙育图和椭圆拟合法的三个随机干涉图的高效相位提取

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摘要

To deal with both of the fluctuation of background intensity and the random phase shift error, this paper present an efficient and rapid phase extraction algorithm. The parametric equations of Lissajous ellipse are derived by subtraction operations on three random interferograms. Then the elliptic parameters are calculated by ellipse fitting, which is used for phase extraction. It is unnecessary for the algorithm to calculate the random phase shift value and remove the background term, which reduces the algorithm's complexity and shortens the processing time. The effectiveness and reliability of the algorithm are verified by both the numerical simulations and the experiment. The results shows that the algorithm is robust to the fluctuation of background intensity and modulation amplitude.
机译：针对背景强度的波动和随机相移误差，本文提出了一种高效，快速的相位提取算法。通过对三个随机干涉图进行减法运算，得出李萨如椭圆的参数方程。然后通过椭圆拟合计算出椭圆参数，将其用于相位提取。该算法无需计算随机相移值并去除背景项，从而降低了算法的复杂度并缩短了处理时间。通过数值仿真和实验验证了算法的有效性和可靠性。结果表明，该算法对背景强度和调制幅度的波动具有鲁棒性。

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  • 来源
  • 会议地点 Beijing(CN)
  • 作者

    Hebing Lei; Yong Yao; Haopeng Liu; Yanfu Yang;

  • 作者单位

    College of Electronic and Information Engineering, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen, Guangdong Province, 518055, China;

    College of Electronic and Information Engineering, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen, Guangdong Province, 518055, China;

    College of Electronic and Information Engineering, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen, Guangdong Province, 518055, China;

    College of Electronic and Information Engineering, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen, Guangdong Province, 518055, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Phase extraction; Lissajous figure; Self-calibration; interferpmetry; random phase shift;

    机译：相萃取；利萨如图自校准；干涉法随机相移;

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