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Digital four-step phase-shifting technique from a single fringe pattern using Riesz transform

机译:使用Riesz变换的单个边缘图案的数字四步相移技术

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摘要

A digital four-step phase-shifting method for obtaining the optical phase distribution from a single fringe pattern is proposed in this Letter. By computing the first-, second-, and third-order Riesz transform components for a given fringe pattern, three pi/2 phase-shifted fringe patterns are generated from the obtained Riesz components and, finally, the wrapped phase map is extracted. The validity of the proposed method is demonstrated on both the simulated and experimentally obtained fringe patterns. The performance of the proposed method is evaluated by using the image quality index and edge preservation index. Further, the performance of the proposed method is tested on speckled correlation fringes obtained from digital speckle pattern interferometry, and the resulting phase from the proposed method is compared with the phase obtained from three experimentally recorded phase-shifted fringe patterns. The obtained results reveal that the proposed method provides a simple and robust solution for optical phase extraction from a single fringe pattern with good accuracy and, therefore, make it suitable for real-time measurement applications. (C) 2019 Optical Society of America
机译:在这封信中提出了一种用于从单个边缘图案获得光学相位分布的数字四步相移方法。通过计算给定条纹图案的第一,第二和三阶riesz变换组件,从所获得的RIESZ组件产生三个PI / 2相移条纹图案,最后,提取包裹相位图。在模拟和实验获得的条纹图案中证明了所提出的方法的有效性。通过使用图像质量指数和边缘保存索引来评估所提出的方法的性能。此外,在从数字斑点图案干涉法获得的斑点相关条件上测试所提出的方法的性能,并且将来自所提出的方法的所得相位与由三种实验记录的相移条纹图案获得的相位进行比较。所获得的结果表明,该方法提供了一种简单且坚固的解决方案,用于具有良好精度的单个条纹图案的光学相位提取,因此可以适用于实时测量应用。 (c)2019年光学学会

著录项

  • 来源
    《Optics Letters》 |2019年第14期|共4页
  • 作者单位

    ChouaibDoukkali Univ Dept Phys Sci Fac Benmaachou St El Jadida 24000 Morocco;

    Kobe Univ Grad Sch Syst Informat Dept Syst Sci Nada Ku Rokkodai 1-1 Kobe Hyogo 6578501 Japan;

    ChouaibDoukkali Univ Dept Phys Sci Fac Benmaachou St El Jadida 24000 Morocco;

    Ctr Invest Opt AC Guanajuato 37160 Mexico;

    ChouaibDoukkali Univ Dept Phys Sci Fac Benmaachou St El Jadida 24000 Morocco;

    Kobe Univ Grad Sch Syst Informat Dept Syst Sci Nada Ku Rokkodai 1-1 Kobe Hyogo 6578501 Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
  • 关键词

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