Chen Guangfeng, Guan Guanyang, Wei Xin. Online Stamping Parts Surface Defects Detection Based on Machine Vision[J]. Laser & Optoelectronics Progress, 2018, 55(1): 11501
- Laser & Optoelectronics Progress
- Vol. 55, Issue 1, 11501 (2018)
Fig. 1. (a) Composition diagram and (b) physical diagram of system hardware
Fig. 2. Image obtained online
Fig. 3. Calculation process of correlation
Fig. 4. Flow chart of pyramid acceleration algorithm
Fig. 5. Fast positioning of workpieces
Fig. 6. Diagram of bilinear interpolation
Fig. 7. Cross section of negative LoG operator
Fig. 8. Enhanced surface image of the workpiece
Fig. 9. Defect segmentation image after the threshold processing
Fig. 10. Defect segmentation image for another workpiece
Fig. 11. System software interface
Fig. 12. (a) Location image; (b) regional enhanced image; (c) defect segmentation image
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Table 1. Defect detection results
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Table 2. Experimental time analysis
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