1.聊城大学物理科学与信息工程学院,聊城 252000
2.山东省农业科学院农业信息与经济研究所, 济南 250100
3.山东省农业机械科学研究院,济南 250100
路京奥,E-mail:2078588849@qq.com
郑纪业,E-mail:jiyezheng@163.com
张晓艳,E-mail:239491965@qq.com
收稿:2025-10-05,
纸质出版:2026-05-25
移动端阅览
路京奥,顾文辉,郑纪业,等.基于YOLOv8n改进的玉米幼苗杂草识别模型[J].华中农业大学学报,2026,45(3):45‐55.
LU Jing′ao,GU Wenhui,ZHENG Jiye,et al.An improved YOLOv8n-based model for identifying weeds and seedling of maize[J].Journal of Huazhong Agricultural University,2026,45(03):45-55.
路京奥,顾文辉,郑纪业,等.基于YOLOv8n改进的玉米幼苗杂草识别模型[J].华中农业大学学报,2026,45(3):45‐55. DOI: 10.13300/j.cnki.hnlkxb.2026.03.004.
LU Jing′ao,GU Wenhui,ZHENG Jiye,et al.An improved YOLOv8n-based model for identifying weeds and seedling of maize[J].Journal of Huazhong Agricultural University,2026,45(03):45-55. DOI: 10.13300/j.cnki.hnlkxb.2026.03.004.
为有效控制玉米幼苗杂草危害,提升杂草识别精度,并适配移动端部署需求,提出一种轻量化YOLOv8n-DSSW模型。该模型引入C2f_Dual模块,实现初步轻量化;使用SPDConv模块增强模型对小目标检测和低分辨率图像的感知能力,并进一步实现轻量化;引入SPPELAN模块增强多尺度特征感知能力;回归损失函数使用Inner-WIoU,辅助框优化边界框定位精度并合理分配模型对不同质量锚框的权重,整体提升识别精度与鲁棒性。结果显示,改进后模型在玉米幼苗和杂草识别任务中,精确率、召回率、平均精确率分别提升3.4、1.9、2.4百分点,权重轻量15.9%,浮点运算速度减少14.8%。结果表明,该模型在杂草特征弱、杂草与玉米重叠、形态相似等复杂田间环境下仍保持较高识别性能,模型大小与计算效率适合在移动装备端部署。
A lightweight model named as YOLOv8n-DSSW was developed based on YOLOv8n to effectively control the damage of weeds in maize seedlings, improve the accuracy of identifying weeds, and meet the requirements for mobile deployment.The C2f_Dual module was integrated to achieve initial lightweight.The SPDConv module was used to enhance the capability of identification for small targets and low-resolution images while further reducing the complexity of model.The SPPELAN module was incorporated to strengthen the perception of multi-scale feature.The regression loss function used Inner WIOU to assist in optimizing the accuracy of bounding box localization and allocating weights to anchor boxes of different qualities, thereby overall improving the accuracy and robustness of identification.The results showed that the proposed model achieved an increase of 3.4 percentage points in precision, 1.9 percentage points in recall, and 2.4 percentage points in mean average precision (mAP) in identifying weeds and seedling of maize.The weight of model was reduced by 15.9% and floating-point operations (FLOPs) decreased by 14.8%.This model maintained high performance of identification in complex field environments including weak features of weeds, overlapping weeds with maize seedlings, and similar morphology.Its compact size and computational efficiency make it suitable for the deployment in mobile devices for controlling weeds during the stage of seedling.
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