Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (5): 1461-1467.doi: 10.12305/j.issn.1001-506X.2022.05.05

• Electronic Technology • Previous Articles     Next Articles

Ground infrared target detection method based on global sensing mechanism

Xiaofeng ZHAO1,2, Yebin XU1,2,*, Fei WU1,2, Jiahui NIU1,2, Wei CAI1,2, Zhili ZHANG1,2   

  1. 1. College of Missile Engineering, Rocket Force Engineering University, Xi'an 710025, China
    2. Armament Launch Theory and Technology Key Discipline Laboratory of China, Xi'an 710025, China
  • Received:2021-04-08 Online:2022-05-01 Published:2022-05-16
  • Contact: Yebin XU

Abstract:

Aiming at the problems of infrared target detection in ground scenes, such as complex background interference, low detection accuracy, false detection and missed detection, an infrared target detection method based on global perception mechanism is proposed. Based on Darknet-53 as the backbone network, combined with the spatial pyramid pooling mechanism with global information fusion, the global information perception and anti-interference ability of the model are enhanced while increasing the sensing domain of the model. The smooth focus loss function is designed to solve the problems of low detection accuracy, false detection and missed detection caused by the interaction of targets in the image. Experiments show that on the infrared-voc320 data set, the average detection accuracy of the algorithm is 80.1%, which is 4.4% higher than that of YOLOv3, and the detection speed reaches 56.4 FPS, which effectively improves the detection accuracy of infrared targets under complex background and realizes the real-time detection of infrared targets.

Key words: infrared target detection, YOLOv3, deep learning, loss function, spatial pyramid pooling

CLC Number: 

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