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Acta Armamentarii ›› 2023, Vol. 44 ›› Issue (10): 3165-3176.doi: 10.12382/bgxb.2022.0605

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An Infrared Small Target Detection Method via Dual Network Collaboration

WANG Qiang1,2,3, WU Letian1,2, LI Hong1,2, WANG Yong3, WANG Huan4, YANG Wankou1,2,*()   

  1. 1 School of Automation, Southeast University, Nanjing 210096, Jiangsu, China
    2 Key Laboratory of Measurement and Control of Complex Systems of Engineering, Ministry of Education, Southeast University, Nanjing 210096, Jiangsu, China
    3 Jiangsu Automation Research Institute, Lianyungang 222061, Jiangsu, China
    4 School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
  • Received:2022-07-05 Online:2023-10-30
  • Contact: YANG Wankou

Abstract:

Infrared small target detection (ISTD) is a heated topic in infrared image processing, and it is intensively applied in early warning systems and missile guidance. ISTD faces significant challenges such as low signal-to-noise ratio (SNR), small size, lack of distinct shape or structure, and weak texture, making it a demanding task. The performance of conventional object detection networks and semantic segmentation networks considerably deteriorates when applied directly to ISTD tasks. To address this issue, this paper proposes a new dual network collaboration-based image semantic segmentation network for ISTD, termed as DualNet. DualNet divides the task into two sub-tasks, namely reducing missed detections and reducing false alarms, with two sub-networks focusing on their respective targets (with cost reduced) by employing a weighted loss function to integrate sub-network information. DualNet effectively balances the miss detection rate and false alarm rate. Experimental results show that DualNet outperforms general neural network models (e.g. FCN, DeepLabv3, cGAN and U-net) on the ISTD task, with an improved F1-measure by 0.08. Furthermore, our model outperforms ACM and MDvsFA-cGAN, two most representative ISTD models based on deep learning, and several non-deep-learning-based ISTD methods.

Key words: infrared dim small target, target detection, dual network collaboration, semantic segmentation, deep learning

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