Wenxi Yu, Guili Xu. Connector Surface Crack Detection Method[J]. Laser & Optoelectronics Progress, 2022, 59(14): 1415015
- Laser & Optoelectronics Progress
- Vol. 59, Issue 14, 1415015 (2022)
Fig. 1. Flow chart of the designed method
Fig. 2. Original image
Fig. 3. Result of image binarization processing. (a) Image to be processed; (b) result of binarization processing
Fig. 4. Boundary detection result. (a) Image of the area to be detected; (b) masked image of the area to be detected
Fig. 5. 12 structural elements constructed in this paper
Fig. 6. Comparison of extraction effect between the proposed method and black hat operation. (a) Black hat operation; (b) proposed method
Fig. 7. Columnwise projection result
Fig. 8. Image segmentation result
Fig. 9. Schematic of location features
Fig. 10. Schematic of spindle direction
Fig. 11. Schematic of the equivalent ellipse of the cracked area
Fig. 12. Detection result of Blob analysis
Fig. 13. Some pseudo cracks and detection results. (a) Pseudo-crack original images; (b) test results
Fig. 14. Physical picture of crack detection system
Fig. 15. Detection result comparison of different methods
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Table 1. Detection results
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