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Farmland boundary extraction based on the AttMobile-DeeplabV3+network and least squares fitting of straight lines

文献类型： 外文期刊

作者： Lu, Hao 1 ; Wang, Hao 1 ; Ma, Zhifeng 4 ; Ren, Yaxin 5 ; Fu, Weiqiang 1 ; Shan, Yongchao 1 ; Hu, Shupeng 1 ; Zhang, Guangqiang 1 ; Meng, Zhijun 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Intelligent Equipment Res Ctr, Beijing, Peoples R China

2.State Key Lab Intelligent Agr Power Equipment, Beijing, Peoples R China

3.Natl Engn Res Ctr Intelligent Equipment Agr, Beijing, Peoples R China

4.Beijing Inst Technol, Sch Integrated Circults & Electon, Beijing, Peoples R China

5.Beijing Acad Agr & Forestry Sci, Beijing Res Ctr Informat Technol Agr, Beijing, Peoples R China

关键词： UAV remote sensing; farmland boundary extraction; semantic segmentation; DeeplabV3+; linear fitting

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.6； 五年影响因子：6.8 ）

ISSN： 1664-462X

年卷期： 2023 年 14 卷

页码：

收录情况： SCI

摘要： The rapid extraction of farmland boundaries is key to implementing autonomous operation of agricultural machinery. This study addresses the issue of incomplete farmland boundary segmentation in existing methods, proposing a method for obtaining farmland boundaries based on unmanned aerial vehicle (UAV) remote sensing images. The method is divided into two steps: boundary image acquisition and boundary line fitting. To acquire the boundary image, an improved semantic segmentation network, AttMobile-DeeplabV3+, is designed. Subsequently, a boundary tracing function is used to track the boundaries of the binary image. Lastly, the least squares method is used to obtain the fitted boundary line. The paper validates the method through experiments on both crop-covered and non-crop-covered farmland. Experimental results show that on crop-covered and non-crop-covered farmland, the network's intersection over union (IoU) is 93.25% and 93.14%, respectively; the pixel accuracy (PA) for crop-covered farmland is 96.62%. The average vertical error and average angular error of the extracted boundary line are 0.039 and 1.473 degrees, respectively. This research provides substantial and accurate data support, offering technical assistance for the positioning and path planning of autonomous agricultural machinery.

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