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Laser & Optoelectronics Progress, Volume. 57, Issue 4, 041514(2020)

Optimization Method for Camera Intrinsic Parameters Based on Improved Particle Swarm Algorithm

Chengyi Xu1,2, Ying Liu1、*, Yi Xiao2, and Jian Cao2
Author Affiliations
  • 1College of Electronic and Mechanical Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
  • 2College of Mechanical Engineering, Nantong Vocational University, Nantong, Jiangsu 226007, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (7)
    Equations (0)
    References (16)
    Cited By (5)
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    Figures & Tables(7)
    Monocular camera model

    Fig. 1. Monocular camera model

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    Reprojection error of Zhang Zhengyou calibration method

    Fig. 2. Reprojection error of Zhang Zhengyou calibration method

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    Reprojection error of PSO method

    Fig. 3. Reprojection error of PSO method

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    Reprojection error of IPSO method

    Fig. 4. Reprojection error of IPSO method

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    Mean reprojection errors of repeatable experiments

    Fig. 5. Mean reprojection errors of repeatable experiments

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    • Table 1. Calibration results of camera intrinsic parameters

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      Table 1. Calibration results of camera intrinsic parameters

      MethodZhangPSOIPSO
      fx297.45560297.65350298.14325
      fy297.32785297.61227298.13513
      u0252.65332253.01923251.35418
      v0210.35674210.74318211.23546
      l10.132600.123720.12540
      l2-0.43980-0.42615-0.42913
      p1-0.00556-0.00672
      p2--0.006870.00543

    • Table 2. Reprojection error of repeatable experiments

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      Table 2. Reprojection error of repeatable experiments

      ExperimentalgroupAmountof imagesZhang methodPSO methodIPSO method
      Meanvalue /pixelStandarddeviation /pixelMeanvalue /pixelStandarddeviation /pixelMeanvalue /pixelStandarddeviation /pixel
      1100.2453230.2145360.2231670.1677360.0842330.054263
      2250.2531780.2875520.2365860.1899210.1123580.082621
      3400.2884360.3142530.2633520.2543730.1213260.153323
      4550.2988320.3021770.2681210.2477360.1355370.151852
      5700.2766390.2989270.2308550.2066250.1052330.127735
      6850.2566320.2799820.2279630.1867290.0983120.063298
      71000.2543860.2656740.2216580.1756730.0979450.043652
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    Chengyi Xu, Ying Liu, Yi Xiao, Jian Cao. Optimization Method for Camera Intrinsic Parameters Based on Improved Particle Swarm Algorithm[J]. Laser & Optoelectronics Progress, 2020, 57(4): 041514

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    Paper Information

    Category: Machine Vision

    Received: Jul. 16, 2019

    Accepted: Aug. 20, 2019

    Published Online: Feb. 20, 2020

    The Author Email: Ying Liu (lying_new@163.com)

    DOI:10.3788/LOP57.041514

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology