HUBEI AGRICULTURAL SCIENCES ›› 2025, Vol. 64 ›› Issue (5): 160-166.doi: 10.14088/j.cnki.issn0439-8114.2025.05.025

• Information Engineering • Previous Articles     Next Articles

A rapid identification method for maize leaf spot disease based on the improved YOLOv8 model

ZHANG Lu, WU Xue-lian   

  1. Economics and Management School, Yangtze University, Jingzhou 434023, Hubei, China
  • Received:2024-10-31 Online:2025-05-25 Published:2025-06-11

Abstract: To achieve rapid identification of maize leaf spot disease, the detection performance of the improved YOLOv8 model was optimized by integrating the Global Attention Module (GAM), Slim-Neck lightweight module, and Inner-CIoU loss function. Compared with the original YOLOv8 model, the improved YOLOv8 model (GAM+Slim-Neck+Inner-CIoU) showed increases of 4.15% in Precision, 5.51% in Recall, 3.91% in mAP @0.5, and 11.35% in mAP @[0.5∶0.95], while the number of parameters and detection time decreased by 10.39% and 3.42%, respectively. The improved YOLOv8 model outperformed other models (YOLOv3, YOLOv5, YOLOv6, and Faster R-CNN) in Precision, Recall, mAP @0.5, and mAP @[0.5∶0.95], while also demonstrating significant advantages in parameter quantity and detection time, combining high efficiency with lightweight characteristics. The improved YOLOv8 model efficiently captured critical information, fully integrated multi-dimensional features, and rationally allocated computational resources, thereby enhancing recognition accuracy.

Key words: maize, leaf spot disease, improvement, YOLOv8 model, rapid identification

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