Researching | Space Target Detection Algorithm Based on Attention Mechanism and Dynamic Activation

Laser & Optoelectronics Progress, Volume. 59, Issue 14, 1415021(2022)

Space Target Detection Algorithm Based on Attention Mechanism and Dynamic Activation

Shengli Liu¹, Yulan Guo², and Gang Wang^1、*

Author Affiliations

¹College of Air and Missile Defense, Air Force Engineering University, Xi'an 710051, Shaanxi , China

²College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, Hunan , China

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Figures&Tables (6)

References (28)

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Figures & Tables(6)

Fig. 1. Network structure of space target detection model

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Fig. 2. Network structure of attention and dynamic activation module

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Fig. 3. Examples of SPARK dataset

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Fig. 4. Normalized confusion matrix

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Table 1. Comparison of ablation experimental results

Table 1. Comparison of ablation experimental results

Model	Attention	Dynamic ReLU	AP /%				AP Across Scales /%
Model	Attention	Dynamic ReLU	IoU=0.50∶0.95	IoU=0.50	IoU=0.75		Small	Medium	Large
Faster R-CNN	×	×	75.4	88.5	81.7		41.6	72.0	80.3
YOLOv3	×	×	64.1	87.6	73.1		29.8	63.6	67.8
FCOS	×	×	75.5	88.3	80.6		36.3	71.9	80.6
Attn	√	×	76.5	89.9	82.1		31.8	73.7	83.7
DyReLU	×	√	75.6	88.6	81.1		33.8	71.9	81.5
Ours	√	√	77.1	91.4	82.8		32.2	74.4	84.6

Table 2. Comparison of label assignment strategy
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Table 2. Comparison of label assignment strategy
Model
Label
assigner
AP /% AP Across Scales /%
IoU=0.50∶0.95 IoU=0.50 IoU=0.75 Small Medium Large
FCOS MaxIoU 75.5 88.3 80.6 36.3 71.9 80.6
Model 1 MaxIoU 77.1 91.4 82.8 32.2 74.4 84.6
Model 2 simOTA 76.7 90.5 82.3 37.7 73.8 83.5

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Shengli Liu, Yulan Guo, Gang Wang. Space Target Detection Algorithm Based on Attention Mechanism and Dynamic Activation[J]. Laser & Optoelectronics Progress, 2022, 59(14): 1415021

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Paper Information

Category: Machine Vision

Received: Mar. 31, 2022

Accepted: May. 18, 2022

Published Online: Jul. 1, 2022

The Author Email: Gang Wang (sharesunny123@163.com)

DOI:10.3788/LOP202259.1415021

Topics

laser devices and laser physics

Lasers and Laser Optics

laser manufacturing

Instrumentation, Measurement and Metrology