Hao Wang, Tao Zha, Lingmei Nie, Jun Zhang, Yuxi Tang, Youquan Zhao. Improved Faster R-CNN-Based Contact Lens Surface Defect Detection[J]. Laser & Optoelectronics Progress, 2023, 60(20): 2015004
- Laser & Optoelectronics Progress
- Vol. 60, Issue 20, 2015004 (2023)
Fig. 1. Structure of Faster R-CNN with FPN
Fig. 2. Detection platform. (a) Structure of detection platform; (b) physical image of detection platform
Fig. 3. Several defects of contact lens. (a) Without defect; (b) bubble; (c) turning point; (d) scratch; (e) mold point; (f) mold edge
Fig. 4. Comparison of train loss and precision. (a) Loss function curve; (b) precision curve
Fig. 5. K-means++ clustering result
Fig. 6. Results of contact lens defect detection obtained by improved Faster R-CNN algorithm
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Table 1. Result of defect detection statistics
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Table 2. Performance comparison of improved Faster R-CNN
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