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Phase retrieval-based distribution detecting method for transparent objects

机译:基于相位检索的透明物体分布检测方法

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摘要

A distribution detecting method to recover the distribution of transparent objects from their diffraction intensities is proposed. First, on the basis of the Gerchberg-Saxton algorithm, a wavefront function involving the phase change of the object is retrieved from the incident light intensity and the diffraction intensity, then the phase change of the object is calculated from the retrieved wavefront function by using a gradient field-based phase estimation algorithm, which circumvents the common phase wrapping problem. Finally, a linear model between the distribution of the object and the phase change is set up, and the distribution of the object can be calculated from the obtained phase change. The effectiveness of the proposed method is verified with simulations and experiments.
机译:提出了一种从透明物体的衍射强度恢复其分布的分布检测方法。首先,根据Gerchberg-Saxton算法,从入射光强度和衍射强度中检索出涉及物体相变的波前函数,然后通过使用一种基于梯度场的相位估计算法,该算法避免了常见的相位包裹问题。最后,建立物体分布和相变之间的线性模型,并可以从获得的相位变化中计算出物体的分布。仿真和实验验证了该方法的有效性。

著录项

  • 来源
    《Optical engineering》 |2015年第11期|102-102|共1页
  • 作者

    Liang Wu; Shaohua Tao; Si Xiao;

  • 作者单位

    Central South University, School of Physics and Electronics, No. 932 Lushan South Road, Changsha 410083, China;

    Central South University, School of Physics and Electronics, No. 932 Lushan South Road, Changsha 410083, China,Central South University, Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics,No. 932 Lushan South Road, Changsha 410083, China;

    Central South University, School of Physics and Electronics, No. 932 Lushan South Road, Changsha 410083, China,Central South University, Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics,No. 932 Lushan South Road, Changsha 410083, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    distribution detecting; phase retrieval; phase estimation algorithm; linear model;

    机译:分布检测;相位检索;相位估计算法;线性模型;

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