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Laser & Optoelectronics Progress, Volume. 55, Issue 11, 111508(2018)

Weld Inspection and Tracking of Laser Welding Head

Guodong Ma1, Yanshen Wang1、*, Xiaotian Shi2, Guanghua Fan3, and Huiying Liu1
Author Affiliations
  • 1 Department of Mechanical Engineering, Harbin Institute of Technology at Weihai, Weihai, Shandong 264209, China
  • 2 School of Astronautics, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
  • 3 Department of Optoelectronics, Harbin Institute of Technology at Weihai, Weihai, Shandong 264209, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (10)
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    References (20)
    Cited By (4)
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    Figures & Tables(10)
    Sketch map of laser welding head and CCD system

    Fig. 1. Sketch map of laser welding head and CCD system

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    Sketch map for CCD image detection

    Fig. 2. Sketch map for CCD image detection

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    Sketch map of laser triangulation principle

    Fig. 3. Sketch map of laser triangulation principle

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    Image processing process renderings. (a) Original image; (b) median filter; (c) binary image; (d) target setting

    Fig. 4. Image processing process renderings. (a) Original image; (b) median filter; (c) binary image; (d) target setting

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    Schematic diagram of laser detection model

    Fig. 5. Schematic diagram of laser detection model

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    Work flow chart of KCF tracking algorithm

    Fig. 6. Work flow chart of KCF tracking algorithm

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    Laser-guided straight seam weld tracking process. (a) Start point; (b) 1/3 point; (c) 1/2 point; (d) end point

    Fig. 7. Laser-guided straight seam weld tracking process. (a) Start point; (b) 1/3 point; (c) 1/2 point; (d) end point

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    Target fitting curve of straight welds

    Fig. 8. Target fitting curve of straight welds

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    Laser-guided curve seam weld tracking process. (a) Start point; (b) 1/3 ponit; (c) 1/2 point; (d) end point

    Fig. 9. Laser-guided curve seam weld tracking process. (a) Start point; (b) 1/3 ponit; (c) 1/2 point; (d) end point

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    Target fitting curve of curved welds

    Fig. 10. Target fitting curve of curved welds

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    Guodong Ma, Yanshen Wang, Xiaotian Shi, Guanghua Fan, Huiying Liu. Weld Inspection and Tracking of Laser Welding Head[J]. Laser & Optoelectronics Progress, 2018, 55(11): 111508

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    Paper Information

    Category: Machine Vision

    Received: Apr. 24, 2018

    Accepted: Jun. 8, 2018

    Published Online: Aug. 14, 2019

    The Author Email: Yanshen Wang (wangyanshen@hit.edu.cn)

    DOI:10.3788/LOP55.111508

    Topics

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