Small Target Detection Based on Cross-Scale Fusion Convolution Neural Network

Table 1. Performance of different backbone networks
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Table 1. Performance of different backbone networks
Backbone Top-1/% Top-5/% FPS /frame
Darknet-19 74.1 91.8 171
ResNet-101 77.1 93.7 53
ResNet-152 77.6 93.8 37
Darknet-53 77.2 93.8 78

Table 2. Recall rates of different networks unit: %
View table
Table 2. Recall rates of different networks unit: %
Network Plane Large-vehicle Small-vehicle Average
YOLOv3 98.0 85.8 82.4 88.6
Improved structure1 98.3 90.0 85.6 91.3
Improved structure2 97.8 88.9 96.9 94.5

Table 3. Precision rates of different networks unit: %
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Table 3. Precision rates of different networks unit: %
Network Plane Large-vehicle Small-vehicle Average
YOLOv3 97.4 80.0 81.4 86.3
Improved structure1 97.0 83.0 85.0 88.3
Improved structure2 96.5 81.1 87.1 88.2

Table 4. Multi-category recall rates of different networks unit: %
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Table 4. Multi-category recall rates of different networks unit: %
Network Plane Large-vehicle Small-vehicle Average
YOLOv3 64.3 27.5 11.6 34.5
R-FCN 72.9 31.9 14.2 39.7
Improved structure2 89.6 57.2 61.0 69.3
Receptive field optimization 93.1 76.8 72.7 80.9

Table 5. Multi-class precision rates of different networks unit: %
View table
Table 5. Multi-class precision rates of different networks unit: %
Network Plane Large-vehicle Small-vehicle Average
YOLOv3 62.0 16.7 3.5 27.4
R-FCN 68.6 29.1 13.5 34.9
Improved structure2 87.9 45.8 44.8 59.5
Receptive field optimization 90.3 37.7 49.4 59.0

Table 6. Basic parameters of different networks
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Table 6. Basic parameters of different networks
Network Volume /Mb Time consuming /s
YOLOv3 246.3 0.063
R-FCN 102.5 0.180
Improved structure2 242.7 0.085
Receptive field optimization 239.4 0.083

Table 7. Recall rates of different networks under the COCO data set unit: %
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Table 7. Recall rates of different networks under the COCO data set unit: %
Network Small Medium Large Average
YOLOv3 24.0 48.2 61.1 44.4
Receptive field optimization 36.2 58.2 65.5 53.3

Table 8. Precision rates of different networks under the COCO data set unit: %
View table
Table 8. Precision rates of different networks under the COCO data set unit: %
Network Small Medium Large Average
YOLOv3 14.2 34.1 46.4 31.6
Receptive field optimization 25.2 41.5 48.5 38.4

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Liu Feng, Guo Meng, Wang Xiangjun. Small Target Detection Based on Cross-Scale Fusion Convolution Neural Network[J]. Laser & Optoelectronics Progress, 2021, 58(6): 610012

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