• Optics and Precision Engineering
  • Vol. 31, Issue 2, 226 (2023)
Wenlin WU1, Xiaobo LIAO1,2,*, Junzhong LI1, Jun ZHOU1, and Jian ZHUANG2
Author Affiliations
  • 1School of Manufacturing Science and Engineering, Key Laboratory of Testing Technology for Manufacturing Process, Minsitry of Education, Southwest University of Science and Technology, Mianyang6200, China
  • 2School of Mechanical Engineering, Xi’ an Jiaotong University, Xi’ an710049,China
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    DOI: 10.37188/OPE.20233102.0226 Cite this Article
    Wenlin WU, Xiaobo LIAO, Junzhong LI, Jun ZHOU, Jian ZHUANG. Adaptive optimization control method for overexposure of industrial camera[J]. Optics and Precision Engineering, 2023, 31(2): 226 Copy Citation Text show less
    Area division
    Fig. 1. Area division
    Regionalized threshold evaluation system
    Fig. 2. Regionalized threshold evaluation system
    Experimental platform for algorithms
    Fig. 3. Experimental platform for algorithms
    Exposure control response curve
    Fig. 4. Exposure control response curve
    Comparison with automatic exposure adjustment
    Fig. 5. Comparison with automatic exposure adjustment
    Comparison with histogram exposure adjustment
    Fig. 6. Comparison with histogram exposure adjustment
    实验编号初始曝光设定值调节时间/s
    18 0002000.08
    28 0002000.06
    38 0002000.10
    48 0002000.09
    58 0002000.07
    Table 1. Exposure control parameters experimental data

    设置亮度

    /Lx

    曝光调节方式Laplacian图像平均标准差值/pix
    2 070相机自动曝光调节15.839 8
    本文算法曝光调节34.583 5
    2 280相机自动曝光调节15.528 3
    本文算法曝光调节33.532 4
    2 456相机自动曝光调节15.180 5
    本文算法曝光调节34.669 9
    2 803相机自动曝光调节14.712 9
    本文算法曝光调节34.613 9
    3 145相机自动曝光调节13.906 4
    本文算法曝光调节34.608 2
    Table 2. Comparison with the camera hardware automatic exposure method
    图像直方图最大值设置曝光值
    >1502 500
    >701 500
    >301 000
    >15500
    Table 3. Histogram exposure adjustment strategy

    设置亮度

    /Lx

    曝光调节方式Laplacian图像平均标准差值/pix
    2 654直方图曝光调节27.798 1
    本文算法曝光调节34.731 7
    3 006直方图曝光调节27.854 1
    本文算法曝光调节34.769 7
    3 068直方图曝光调节28.940 5
    本文算法曝光调节34.675 2
    3 160直方图曝光调节27.687 6
    本文算法曝光调节34.578 7
    3 391直方图曝光调节28.437 2
    本文算法曝光调节34.753 4
    Table 4. Comparison with histogram exposure adjustment method
    Wenlin WU, Xiaobo LIAO, Junzhong LI, Jun ZHOU, Jian ZHUANG. Adaptive optimization control method for overexposure of industrial camera[J]. Optics and Precision Engineering, 2023, 31(2): 226
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