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31 January 2023 HB-YOLOv5: improved YOLOv5 based on hybrid backbone for infrared small target detection on complex backgrounds
Xin-Yi Ye, Si-Li Gao, Fan-Ming Li
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Proceedings Volume 12505, Earth and Space: From Infrared to Terahertz (ESIT 2022); 1250505 (2023) https://doi.org/10.1117/12.2664934
Event: Earth and Space: From Infrared to Terahertz (ESIT 2022), 2022, Nantong, China
Abstract
Infrared detecting and tracking system plays an important role in national security. In order to leave enough time to intercept the unknown flying objects, the system needs to” observe” and” report” the objects as early as possible. Due to the long distance and complex background, it is hard to find and locate the small and dim targets. To tackle this difficult task, we propose a hybrid feature extraction network, taking advantages of both convolution and self-attention mechanism. Besides, we use the two-dimension Gaussian distribution to represent the bounding-box, which is convenient to measure the distance between the predicted result and the ground truth comparing to the Intersection over Union measurements. Finally, we also apply multiple data augmentation and training techniques to upgrade the detection performance. To verify effectiveness and efficiency of our method for infrared small target detection, we conduct extensive experiments on a public infrared small target dataset. The experimental results show that the model trained by our method has a significant improvement in detection accuracy and speed compared with other data-based target detection algorithms, with the average precision reaching more than 92%. The proposed method can effectively detect infrared dim-small targets in different complex backgrounds with low false alarm rate and missing alarm rate. It can also achieve outstanding performance in general small object datasets, verifying the effectiveness and robustness of our method.
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Xin-Yi Ye, Si-Li Gao, and Fan-Ming Li "HB-YOLOv5: improved YOLOv5 based on hybrid backbone for infrared small target detection on complex backgrounds", Proc. SPIE 12505, Earth and Space: From Infrared to Terahertz (ESIT 2022), 1250505 (31 January 2023); https://doi.org/10.1117/12.2664934
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KEYWORDS
Target detection
Infrared detectors
Infrared imaging
Convolution
Feature extraction
Transformers
Head
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