Author Affiliations
College of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an, Shaanxi 710054, Chinashow less
Fig. 1. System of real-time road target depth neural network detection for UAV flight control platform
Fig. 2. Model of real-time road target detection based on deep neural network
Fig. 3. Residual block
Fig. 4. Sigmoid function
Fig. 5. Schematic of the predicted bounding box of the 13×13 scale feature map
Fig. 6. Pascal VOC2007, Pascal VOC2012 and self-made VOC data set images by ourselves
Fig. 7. Map of training loss
Fig. 8. Target detection of overlapping images. (a1) and (b1) are the overlapping image detection effect of YOLOv2; (a2) and (b2) are the overlapping image detection effect of our model; (a3) and (b3) are the overlapping image detection effect of YOLOv3
Fig. 9. Target detection of different scenes. (a1) (b1) and (c1) are the object detection effect images of YOLOv2; (a2) (b2) and (c2) are the object detection effect images of our model; (a3) (b3) and (c3) are the object detection effect images of YOLOv3
Fig. 10. NVIDIA Jetson TX2 on real road target inspection. (a1) (b1) and (c1) are the object detection effect images of YOLOv2; (a2) (b2) and (c2) are the object detection effect images of our model; (a3) (b3) and (c3) are the object detection effect images of YOLOv3
Fig. 11. Detection for different targets. (a) Detection for car, bus and person in our model; (b) detection for truck in our model
Name | Value |
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Momentum | 0.9 | Decay | 0.0005 | Learning rate | learning _rate is 0.001,Step is 40000,45000,Scales is 0.1,0.1 | Batch | 64 | Epoch | 100 | Angle | 0 | Saturation | 1.5 | Exposure | 1.5 | Hue | 0.1 |
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Table 1. Training parameters
Model | mAP/% | Recall/% | FPS |
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YOLOv2 | 72.48 | 78.96 | 19 | Our | 82.29 | 86.7 | 20 | YOLOv3 | 86.20 | 89.49 | 13 |
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Table 2. Comparison of target detection performance
Data set | mAP /% | Recall /% | FPS |
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Pascal VOC2007 | 83.58 | 87.37 | 20 | Pascal VOC2012 | 84.32 | 88.45 | 20 | Self-made VOCdata sets | 84.20 | 88.32 | 19 |
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Table 3. Comparison of target detection performance on different data sets