Xuan Wang, Shuo Kang, Weidong Zhu. Defect detection of laminated surface in the automated fiber placement process based on improved CenterNet[J]. Infrared and Laser Engineering, 2021, 50(10): 20210011
- Infrared and Laser Engineering
- Vol. 50, Issue 10, 20210011 (2021)
Fig. 1. (a) Keypoint heatmap; (b) Keypoint offset; (c) Object size
Fig. 2. Schematic diagram of CenterNet network with ResNet-18 as backbone network
Fig. 3. Process of network learning fusion coefficient
Fig. 4. Structure diagram of AFP-CenterNet network
Fig. 5. (a) GT box and feasible boxes; (b) GT box heatmap obtained using a circular to filter feasible boxes; (c) GT box heatmap obtained using a ellipse to filter feasible boxes
Fig. 6. Improved bandwidth parameter solution method
Fig. 7. (a) Data acquisition platform; (b) Infrared images of six typical kinds of AFP laminated surface defects
Fig. 8. Graph of changes in loss value
Fig. 9. Detection results of single frame infrared image
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Table 1. Detection results of CenterNet and AFP-CenterNet on AFP infrared data sets
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Table 2. Detection results of different network models on AFP infrared data sets
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Table 3. Detection speed of different network models only using CPU
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