Optics and Precision Engineering, Volume. 32, Issue 12, 1812(2024)

Super-resolution strain measurement in phase-contrast optical coherence elastography

Zhanhua ZHANG... Xin CAO, Weihao ZHAN, Bo DONG, Shengli XIE and Yulei BAI* |Show fewer author(s)
Author Affiliations
  • School of Automation, Guangdong University of Technology, Guangzhou510006,China
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    Figures & Tables(12)
    Schematic diagram of strain measurement in phase-contrast optical coherence elastography
    Network structure empolyed in our approach
    Training data generation
    Strain results estimated using different approaches
    Optical coherence tomography system and measurement materials
    Compression loading experiment (high resolution)
    Compression loading experiment (low resolution)
    Comparison of Strain
    Numerical experiments with different distributions
    • Table 1. Compression loading experiment

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      Table 1. Compression loading experiment

      带宽/nm方法加载量/μm
      3579
      75矢量方法32.3331.7325.1518.71
      传统应变计算网络33.2241.1740.3142.42
      本文方法32.8739.5639.2835.82
      10矢量方法34.2224.3912.33-4.51
      传统应变计算网络35.6639.7428.017.95
      本文方法35.3340.7736.0516.62
    • Table 2. Comparison of Strain (a) Mean value; (b) SNR

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      Table 2. Comparison of Strain (a) Mean value; (b) SNR

      带宽/nm矢量方法传统应变计算网络本文方法
      均值/mε信噪比/dB均值/mε信噪比/dB均值/mε信噪比/dB
      751.9618,712.3242.422.3035.82
      201.8414.782.2129.902.2429.08
      151.599.512.1023.352.2227.75
      131.263.641.8515.812.1624.63
      100.82-4.511.377.951.9316.62
    • Table 3. Mean square error of numerical experiments

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      Table 3. Mean square error of numerical experiments

      噪声

      分布类型

      噪声强度等级均值
      等级1等级2等级3等级4
      均匀分布0.000 760.000 930.001 150.001 230.001 02
      高斯分布0.000 730.000 850.000 970.001 180.000 93
      莱斯分布0.000 720.000 870.001 040.001 150.000 95
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    Zhanhua ZHANG, Xin CAO, Weihao ZHAN, Bo DONG, Shengli XIE, Yulei BAI. Super-resolution strain measurement in phase-contrast optical coherence elastography[J]. Optics and Precision Engineering, 2024, 32(12): 1812

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    Paper Information

    Category:

    Received: Jan. 5, 2024

    Accepted: --

    Published Online: Aug. 28, 2024

    The Author Email: BAI Yulei (ylbai@gdut.edu.cn)

    DOI:10.37188/OPE.20243212.1812

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