Weakly supervised dual-mask marginal segmentation and variable path planning method for bean weed based on UAV remote sensing

文献类型： 外文期刊

第一作者： Zhang, Jianlin

作者： Zhang, Jianlin;Lu, Xiangyu;Yang, Rui;Liu, Fei;Xu, Hongxing;Huai, Yan

作者机构：

关键词： Variable path planning; Marginal segmentation; Teacher-to-student; Deep learning; Image processing

期刊名称：COMPUTERS AND ELECTRONICS IN AGRICULTURE （ 影响因子：8.9； 五年影响因子：9.3 ）

ISSN： 0168-1699

年卷期： 2025 年 230 卷

页码：

收录情况： SCI

摘要： Field path planning based on UAV remote sensing is the foundation for the autonomous navigation of agricultural weeding robots and other vehicles. Traditional path planning methods are limited by the accuracy of predefined navigation lines and do not consider the variation in workload at different field locations during vehicle operation. This study presents a variable navigation path planning process that integrates the bean weed marginal segmentation technology. The proposed process consists of five main steps. Firstly, constructing a dataset for detecting of bean and weed using manual semi-automatic annotation method; secondly, developing a bean and weed detection model using a teacher-to-student training approach; thirdly, integrating model detection outcomes with the dual-mask pixel-level registration method to achieve bean and weed marginal detection; fourth, semantic segmentation of crop ridges and differential methods are used to extract basic navigation lines. Finally, a variable path planning method is designed by combining the marginal weed feature distribution prescription with the basic navigation lines. To test the algorithm, experiments were conducted using ridge-cultivated beans. The results show that the mIoU, mPA, and Acc values of the best-performing student model, Segformer-b0-S, reached 79.28 %, 88.95 %, and 95.36 % respectively, significantly reducing the annotation workload and successfully achieving the marginal segmentation of bean weed. The mean, median, and Std deviation indicators of the crop ridge navigation line based on Deeplabv3+_mobilenet are 6.07, 4.37, and 8.10 cm, respectively. The study indicates that the developed variable navigation path planning process has achieved satisfactory results, laying an important foundation for the advancement of agricultural weeding robots.

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