| 激光点云在园林城市绿地建库中的应用研究 |
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| 引用本文： | 吴国华. 激光点云在园林城市绿地建库中的应用研究[J]. 城市勘测, 2022, 0(1): 105-109. DOI: 10.3969/j.issn.1672-8262.2022.01.024 |
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| 作者姓名： | 吴国华 |
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| 作者单位： | 福州市勘测院,福建 福州 350108 |
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| 摘 要： | 基于机载激光扫描可以快速获取地球数字表面模型的原理,提出了采用激光点云提取树木点进行拓扑构建绿化覆盖面的作业方法.该方法首先提取高于地面一定数值的点云数据,然后筛选出树木点数据,并对筛选的树木点集构建三角网,最后对构建的三角网进行拓扑构面及邻接面融合从而完成绿化覆盖面的构建.以福州市城市绿地数据建库为例进行了应用实验,...
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| 关 键 词： | 绿化面 绿化覆盖面 激光点云 三角网 毛刺 |
Research on the Application of Laser Point Cloud in Green Space Library Construction of Garden City |
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| Wu Guohua. Research on the Application of Laser Point Cloud in Green Space Library Construction of Garden City[J]. Urban Geotechnical Investigation & Surveying, 2022, 0(1): 105-109. DOI: 10.3969/j.issn.1672-8262.2022.01.024 |
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| Authors: | Wu Guohua |
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| Affiliation: | (Fuzhou Investigation and Surveying Institute,Fuzhou 350108,China) |
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| Abstract: | Based on the principle that the digital surface model of the earth can be quickly obtained by airborne laser scanning,an operation method of tree topology construction using laser point cloud extraction was proposed.The method firstly extracts the point cloud data which is higher than the ground,then selects the tree point data,and constructs the triangulation network based on the selected tree point set.Finally,the constructed triangulation network is fused with the topological surface and the adjacent surface to complete the construction of the greening coverage.The application experiment was carried out by taking the data database of urban green space in Fuzhou as an example,which provided specific experience for the rapid production and application of tree points extracted from laser point cloud for topology construction of greening coverage. |
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| Keywords: | green surface green coverage laser point cloud triangulation network burr |
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