• 中文核心期刊
  • CSCD来源期刊
  • 中国科技核心期刊
  • CA、CABI、ZR收录期刊

基于改进YOLOv8的茉莉花主要害虫识别算法

YOLOv8-based Algorithm for Identifying Major Pest Insects Infesting Jasmine Plants

  • 摘要:
    目的 为实现茉莉花主要害虫(双纹须歧角螟、蓟马)的高效监测,构建精准的茉莉花虫害分类模型,提出一种基于改进YOLOv8s的茉莉花害虫检测方法。
    方法 以YOLOv8s为基础模型,引入小目标检测P2层、CA坐标注意力机制(Coordinate Attention)及MSFF多尺度特征融合(Multi-Scale Feature Fusion),完成茉莉花虫害识别模型的改进与优化。
    结果 模型测试表明,改进的YOLOv8s模型的mAP0.5提升2.94%,双纹须歧角螟与蓟马的精确率分别提升1.97%、4.38%,召回率分别提升0.19%、0.35%。
    结论 改进后模型能够兼顾参数量、计算量,有效提升复杂环境下茉莉花双纹须歧角螟和蓟马的检测精确率与召回率,方便移植到智能监测设备上,为茉莉花害虫的智能监测提供参考。

     

    Abstract:
    Objective An algorithm was developed based on YOLOv8s to accurately identify the pests like Trichophysetis cretacea and thrips on jasmine plants.
    Method A P2 layer for detecting small objects and the mechanism of coordinate attention (CA) and multi-scale feature fusion (MSFF) for integrating information were incorporated into the original YOLOv8s model to improve the detection and identification of the pest insects, such as T. cretacea and thrips, that commonly infested jasmine plants. Furthermore, a web management platform and a WeChat mini-program were added to the program for easily accessible visual display and remote viewing.
    Result The modified algorithm raised mAP0.5 by 2.94% over the original model, showing an 1.97% increased rate of corrective recognition on T. cretacea and 4.38% on thrips, as well as a 0.19% raised recall rate on T. cretacea and 0.35% on thrips.
    Conclusion By embracing the size factor and additional computation loads, the modified algorithm improved the accuracy in detecting and recalling T. cretacea and thrips under complex conditions. The online accessibility provided the program with convenient data visualization and remote monitoring for the pest control at jasmine gardens.

     

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