• Laser & Optoelectronics Progress
  • Vol. 58, Issue 20, 2015009 (2021)
Jinyou Chen1、2 and Zhiwei Guan1、3、*
Author Affiliations
  • 1School of Automobile and Transportation, Tianjin University of Technology and Education, Tianjin 300222, China
  • 2Department of Automotive Engineering, Hunan Financial & Industrial Vocational-Technical College, Hengyang, Hunan 421002, China;
  • 3School of Automobile and Rail Transit, Tianjin Sino-German University of Applied Sciences, Tianjin 300350, China
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    DOI: 10.3788/LOP202158.2015009 Cite this Article Set citation alerts
    Jinyou Chen, Zhiwei Guan. Circular Hole Pose Measurement Method Based on Binocular Vision Epipolar Compensation[J]. Laser & Optoelectronics Progress, 2021, 58(20): 2015009 Copy Citation Text show less
    Hole pose measurement based on binocular vision
    Fig. 1. Hole pose measurement based on binocular vision
    Template method contour purification based on morphology
    Fig. 2. Template method contour purification based on morphology
    Points to be matched determined by Gaussian fitting method. (a) Edge contour of the circular hole; (b) enlarged part of the left area; (c) Gaussian fitting result of the best matching point
    Fig. 3. Points to be matched determined by Gaussian fitting method. (a) Edge contour of the circular hole; (b) enlarged part of the left area; (c) Gaussian fitting result of the best matching point
    Hole contour extracted by our method. (a) Original image; (b) edge detection; (c) ellipse fitted to the initial hole edge; (d) ellipse fitted to of the optimized hole edge
    Fig. 4. Hole contour extracted by our method. (a) Original image; (b) edge detection; (c) ellipse fitted to the initial hole edge; (d) ellipse fitted to of the optimized hole edge
    Three-dimensional reconstruction result of the hole profile. (a) Left image; (b) right image; (c) reconstruction result
    Fig. 5. Three-dimensional reconstruction result of the hole profile. (a) Left image; (b) right image; (c) reconstruction result
    Experimental results of deviation compensation. (a) Image of the measurement hole; (b) radius of the hole; (c) distance between the holes
    Fig. 6. Experimental results of deviation compensation. (a) Image of the measurement hole; (b) radius of the hole; (c) distance between the holes
    No.Hole location /mmNormal vectorRadius /mmRadius error /mmHole spacing /mmHole spacing deviation /mm
    1(86.88, 43.70, 424.15)(0.089, -0.036, 0.997)2.5500.050----
    2(86.55, 33.71, 423.83)(0.089, -0.037, 0.997)2.5570.05710.000
    3(86.18, 23.79, 423.40)(0.087, -0.037, 0.997)2.5560.0569.940.04
    4(87.02, 13.87, 423.14)(0.086, -0.038, 0.997)2.5620.0629.960.06
    Table 1. Characteristic parameters of reconstructed holes
    Jinyou Chen, Zhiwei Guan. Circular Hole Pose Measurement Method Based on Binocular Vision Epipolar Compensation[J]. Laser & Optoelectronics Progress, 2021, 58(20): 2015009
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