Chinese Journal of Liquid Crystals and Displays, Volume. 38, Issue 6, 809(2023)

Eye fatigue assessment method for naked eye 3D display based on multiple eye movements

Yi-fan LI, Bin-bin YAN*, Peng WANG, Duo CHEN, Kui-ru WANG, Xin-zhu SANG, and Si-ming ZHAO
Author Affiliations
  • School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China
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    Figures & Tables(12)
    Contents of experimental stimulus
    Production of experimental stimuli.(a)Using two parallel cameras to capture stereoscopic images;(b)Synthesized videos played on the 3D display based on LLA.
    Experimental scenarios
    Procedure of experiment
    Screening the outlier of the scatter plot of the pupil diameter of the left eye with the box chart
    Feedforward neural network
    Contents of experimental stimulus
    • Table 1. Subjective questionnaire scale

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      Table 1. Subjective questionnaire scale

      评价项目0123
      模糊不模糊较模糊明显模糊极模糊
      眼痛不眼痛较眼痛明显眼痛极眼痛
      眼干不眼干较眼干明显眼干极眼干
      眩晕不眩晕较眩晕明显眩晕极眩晕
      恶心不恶心较恶心明显恶心极恶心
      体劳不疲劳较疲劳明显疲劳极疲劳
    • Table 2. Average values and the trend of each 4-segment videos eye movement

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      Table 2. Average values and the trend of each 4-segment videos eye movement

      眼动特征片段1片段2片段3片段4眼动变化趋势
      注视次数/次20.87919.32020.83520.824
      总注视时长/ms7 727.0967 319.3977 268.0817 195.702
      平均注视时长/ms402.977406.124382.262359.815
      总扫视长度/pixels4 094.3504 140.7054 056.5904 098.217
      平均扫视长度/pixels204.076228.937211.583206.266
      扫视角度/(°)-11.157-4.3147.9257.426
      扫视次数/次39.57740.90843.33543.809
      总扫视时长/ms912.673956.820961.0591 027.654
      平均扫视时长/ms25.57225.97224.94226.019
      扫视速度/(pixels·ms-1)4.6364.7714.5974.430
      微扫视/pixels8.42610.92711.59610.769
      眨眼次数/次10.17615.30511.72814.250
      总眨眼时长/ms793.8791 137.2021 257.7391 179.478
      平均眨眼时长/ms20.87998.907105.850108.219
      左眼瞳孔直径/mm4.6524.7784.7724.624
      右眼瞳孔直径/mm4.6264.7614.7594.587
    • Table 3. Feature ranking results of different feature selection algorithms

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      Table 3. Feature ranking results of different feature selection algorithms

      Feature rankRandom forestCatboostIntegration model
      1扫视角度/(°)扫视角度/(°)扫视角度/(°)
      2微扫视/pixels微扫视/pixels微扫视/pixels
      3平均眨眼时长/ms平均眨眼时长/ms平均眨眼时长/ms
      4总眨眼时长/ms左眼瞳孔直径/mm总眨眼时长/ms
      5右眼瞳孔直径/mm总眨眼时长/ms左眼瞳孔直径/mm
      6左眼瞳孔直径/mm平均注视时长/ms右眼瞳孔直径/mm
      7总扫视时长/ms右眼瞳孔直径/mm平均注视时长/ms
      8总注视时长/ms总扫视时长/ms总注视时长/ms
      9平均扫视时长/ms眨眼次数/次眨眼次数/次
      10眨眼次数/次注视次数/次总扫视时长/ms
      11平均注视时长/ms总注视时长/ms注视次数/次
      12平均扫视长度/pixels扫视次数/次平均扫视时长/ms
      13扫视速度/(pixels·ms-1平均扫视时长/ms平均扫视长度/pixels
      14注视次数/次平均扫视长度/pixels扫视速度/(pixels·ms-1
      15扫视次数/次扫视速度/(pixels·ms-1扫视次数/次
      16总扫视长度/pixels总扫视长度/pixels总扫视长度/pixels
    • Table 4. Catboost model parameter settings

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      Table 4. Catboost model parameter settings

      参数名称参数值
      iterations300
      depth4
      learning rate0.03
      eval metricAUC
      l2_leaf_reg1
    • Table 5. Classification accuracy of top i feature

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      Table 5. Classification accuracy of top i feature

      Feature setfp/%catboost/%model/%
      5607169
      10707575
      12747176
      13767278
      14787479
      15807782
      16777578
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    Yi-fan LI, Bin-bin YAN, Peng WANG, Duo CHEN, Kui-ru WANG, Xin-zhu SANG, Si-ming ZHAO. Eye fatigue assessment method for naked eye 3D display based on multiple eye movements[J]. Chinese Journal of Liquid Crystals and Displays, 2023, 38(6): 809

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    Paper Information

    Category: Research Articles

    Received: Dec. 9, 2022

    Accepted: --

    Published Online: Jun. 29, 2023

    The Author Email: Bin-bin YAN (yanbinbin@bupt.edu.cn)

    DOI:10.37188/CJLCD.2022-0414

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