Small Target Detection in Remote Sensing Images Based on Global Context Information

Hongyan Li; Baoqing Xu; Ziyang Zhang; Weifeng Wang

doi:10.3788/AOS240606

Acta Optica Sinica, Volume. 44, Issue 24, 2428004(2024)

Small Target Detection in Remote Sensing Images Based on Global Context Information

Hongyan Li^1,2, Baoqing Xu^1,2、*, Ziyang Zhang^1,2, and Weifeng Wang^1,2

¹College of Electrical and Control Engineering, Xi’an University of Science and Technology, Xi’an 710054, Shaanxi , China

²Xi’an Key Laboratory of Electrical Equipment Condition Monitoring and Power Supply Safety, Xi’an 710054, Shaanxi , China

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Figures & Tables(9)

Fig. 1. Neural network structure of GCB-YOLOv5

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Fig. 2. Global context block

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Fig. 3. C3 block and GCC3 block. (a) C3 block; (b) GCC3 block

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Fig. 4. BiFPN module structure

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Fig. 5. Circular smooth label

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Fig. 6. Comparison of detection effects of some algorithms. (a) Original figures; (b) R²CNN; (c) YOLOv5s; (d) YOLOv7;

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Table 1. Ablation experiments
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Table 1. Ablation experiments
Group GCC3 BiFPN CSL m_AP
1 78.8
2 √ 81.4
3 √ √ 82.6
4 √ √ √ 83.7

Table 2. Comparison of experiments of different algorithms for partial categories

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Table 2. Comparison of experiments of different algorithms for partial categories

Model	SV	LV	PL	ST	SH	HA	SBF	SP	BD	BC	BR	HC	m_AP /%
R²CNN	58.6	51.6	79.8	73.2	56.4	54.9	55.3	55.1	66.8	68.1	37.1	51.3	61.1
YOLOv3	68.4	71.2	89.5	62.2	83.7	79.8	51.5	78.8	54.7	54.6	29.7	79.6	65.3
SCRDet	65.5	71.4	84.3	87.5	85.7	78.6	61.3	65.2	69.3	84.1	52.4	56.8	72.5
MaskOBB	68.6	60.7	87.3	86.1	73.4	66.7	66.2	68.4	85.3	82.1	52.2	68.6	73.1
YOLOv5s	78.3	86.5	88.4	85.2	86.1	82.3	61.4	64.5	81.9	77.2	58.5	71.3	78.8
YOLOv6s	79.4	76.2	90.5	89.7	87.3	79.8	62.8	68.8	83.6	83.4	56.2	77.5	79.4
YOLOv7	85.6	88.2	88.6	83.9	90.5	89.3	63.5	64.8	84.3	78.3	65.8	73.6	81.2
Improved	95.1	97.4	97.3	87.2	96.9	86.2	65.9	65.7	86.3	83.8	61.3	78.4	83.7

Table 3. Performance comparison results of different algorithms
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Table 3. Performance comparison results of different algorithms
Model P /% R /% Params /10⁶ FLOPs /10⁹ Detection rate /（frame·s^-1）
YOLOv3 72.1 69.3 61.5 193.9 59
YOLOv5s 82.0 80.2 7.2 16.5 120
YOLOv7 85.8 82.3 37.2 105.4 90
GCB-YOLOv5 90.2 87.0 8.9 18.7 105

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Hongyan Li, Baoqing Xu, Ziyang Zhang, Weifeng Wang. Small Target Detection in Remote Sensing Images Based on Global Context Information[J]. Acta Optica Sinica, 2024, 44(24): 2428004

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