Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (6): 1823-1832.doi: 10.12305/j.issn.1001-506X.2022.06.07

• Electronic Technology • Previous Articles     Next Articles

Ship target and key parts detection algorithm based on YOLOv5

Kun QIAN1,2,*, Chenxuan LI1, Meishan CHEN1, Yao WANG1   

  1. 1. College of Coastal Defense Force, Naval Aeronautical University, Yantai 264000, China
    2. Unit 32127 of the PLA, Dalian 116100, China
  • Received:2021-07-16 Online:2022-05-30 Published:2022-05-30
  • Contact: Kun QIAN

Abstract:

In order to improve the detection and recognition success rate of the surface warship target in visible light images, an algorithm based on YOLOv5 is proposed. The spatial pyramid pooling network based on stochastic pooling is used for pooling operation, and the bi-directional feature pyramid network is used for feature fusion. At the same time, the exponential linear unit function is used as the activation function to further accelerate the convergence speed and improve the robustness of the model, so as to realize the rapid and accurate recognition of surface ship targets and key parts of the ship. Through the experimental verification on the data set of the ship target and its key parts, compared with the mainstream target detection methods, the recognition accuracy is improved in varying degrees. Compared with the original YOLOv5s model, the mean average precision is improved by 3.03%, and the speed is improved by 2 FPS. The model maintains the lightweight characteristics of YOLOv5 and has a good prospect in application deployment.

Key words: YOLOv5, stochastic pooling, bi-directional feature pyramid network, exponential linear unit function

CLC Number: 

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