Space Target Detection Algorithm Based on Attention Mechanism and Dynamic Activation

Shengli Liu; Yulan Guo; Gang Wang

doi:10.3788/LOP202259.1415021

Journals >Laser & Optoelectronics Progress >Volume 59 >Issue 14 >Page 1415021 > Article

Laser & Optoelectronics Progress
Vol. 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

show less

DOI: 10.3788/LOP202259.1415021 Cite this Article Set citation alerts

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 Copy Citation Text

show less

Fig. 1. Network structure of space target detection model

Download full size

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

Download full size

Fig. 3. Examples of SPARK dataset

Download full size

Fig. 4. Normalized confusion matrix

Download full size

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 1. Comparison of ablation experimental results

Model	Label assigner	AP /%			AP Across Scales /%
Model	Label assigner	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

Table 2. Comparison of label assignment strategy

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

Download Citation

Set citation alerts for the article

Tools

Set citation alerts for the article

Save the article for my favorites

Paper Information

微信扫一扫：分享

微信扫一扫：分享