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Single snapshot determination of absorption coefficient by multi-frequency MTF characterization in spatial frequency domain

机译:在空间频域中通过多频MTF表征单次确定吸收系数

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摘要

We present a novel approach for single snapshot determination of absorption coefficient based on multi-frequency modulation transfer function (MTF) characterization from measurement in spatial frequency domain. The adopted Fourier transform domain analysis enables simultaneous extraction of information at multiple applied frequencies and excellent reduction of noise. Simulations were conducted for respectively verifying the feasibility of the MTF based approach and the performance of single snapshot determination of absorption coefficient using multi-frequency measurements. Phantom experiments without reference measurement demonstrated the high accuracy of absolute absorption coefficient determination with a maximum reconstruction error of 0.002 mm~(-1).
机译:我们提出了一种新的方法,可以根据空间频域中的测量结果,基于多频调制传递函数(MTF)表征来确定吸收系数的单快照。所采用的傅立叶变换域分析能够在多个应用频率上同时提取信息,并极大地降低了噪声。进行了仿真,以分别验证基于MTF的方法的可行性和使用多频测量的吸收系数单快照确定性能。没有参考测量的虚拟实验证明了绝对吸收系数测定的高精度,最大重建误差为0.002 mm〜(-1)。

著录项

  • 来源
    《Optical tomography and spectroscopy of tissue XII》|2017年|100591T.1-100591T.11|共11页
  • 会议地点 San Francisco(US)
  • 作者单位

    College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China;

    College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China;

    College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China;

    College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China;

    College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China,Tianjin Key Laboratory of Biomedical Detecting Techniques and Instruments, Tianjin 300072, China;

    College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China,Tianjin Key Laboratory of Biomedical Detecting Techniques and Instruments, Tianjin 300072, China;

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

    Spatial frequency domain measuring; modulation transfer function; structural light illumination; absorption coefficient determination; multi-frequency measurement;

    机译:空间频域测量;调制传递函数;结构光照明;吸收系数测定;多频测量;

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