Song Cheng, Jintao Dai, Honggang Yang, Yunxia Chen. Weld Image Detection and Recognition Based on Improved YOLOv4[J]. Laser & Optoelectronics Progress, 2022, 59(16): 1610002
- Laser & Optoelectronics Progress
- Vol. 59, Issue 16, 1610002 (2022)
Fig. 1. Mish activation function
Fig. 2. Network framework diagram of improved YOLOv4
Fig. 3. Loss function comparison curve
Fig. 4. AP and mAP of YOLOv4
Fig. 5. AP and mAP of YOLOv4-cs
Fig. 6. Missed detection rate of different models
Fig. 7. Prediction results of different models. (a) YOLOv4-cs; (b) YOLOv4
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Table 1. Test results of different algorithms
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Table 2. Comparison of F1 values of different models
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Table 3. Comparison of AP and mAP values in different models
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