Yukun JI, Congyi WANG, Qianwen LIU, Yanxi ZHANG, Xiangdong GAO. Three-dimensional reconstruction and recognition of weld defects based on magneto-optical imaging[J]. Optics and Precision Engineering, 2022, 30(1): 108
- Optics and Precision Engineering
- Vol. 30, Issue 1, 108 (2022)
Fig. 1. Principle diagram of Magneto-optical Imaging（MOI） detection for welding defects
Fig. 2. Distribution of magnetic induction lines in 3D finite element model of welding defects
Fig. 3. Distribution of magnetic induction intensity of leakage field in Z direction of pit
Fig. 4. Three-dimensional leakage field strength information in Z direction of surface pit
Fig. 5. Pit defect and its magneto-optic image
Fig. 6. Left edge information extraction of MOI of pit
Fig. 7. Two-dimensional plane profile of pit defect
Fig. 8. Valid value distribution in ROI
Fig. 9. Gradient variation of ROI in pit defect MOI
Fig. 10. Contrast of two kinds of 3D models of pit defect
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Table 1. Structural parameters of three-dimensional models of two kinds of pit defect
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