Bo Yang, Zhenming Xu, Jianxin Liu. Sorting and Detection of Impurity Glass Based on YOLOv4[J]. Laser & Optoelectronics Progress, 2022, 59(18): 1815011
- Laser & Optoelectronics Progress
- Vol. 59, Issue 18, 1815011 (2022)
Fig. 1. Impurity glass samples. (a) Crystal; (b) glue; (c) laminated; (d) bar
Fig. 2. Three labelling methods for bar and copying. (a) Horizontal box; (b) rotated box; (c) square boxes; (d) small object copying
Fig. 3. Relationship between clustering effect of Kmeans++and k
Fig. 4. Clustering result of Kmeans++ algorithm
Fig. 5. YOLOv4 network structure and adjustment
Fig. 6. Loss and AP of validation set during training
Fig. 7. Calculation method of occlusion proportion
Fig. 8. AP under different augmenting types before & after training
Fig. 9. Target pasting and detecting examples. (a)(b) Target attached with label; (c) interference; (d) occlusion
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Table 1. Accuracy comparison of different models in testset
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Table 2. Positive and negative sample distribution
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Table 3. Parameter size and detection performance of typical networks
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