| 机载LiDAR点云获取与高精度DEM建设关键技术探讨 |
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| 引用本文： | 杨辉山,雷丽珍.机载LiDAR点云获取与高精度DEM建设关键技术探讨[J].测绘通报,2019,0(3):124-127. |
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| 作者姓名： | 杨辉山 雷丽珍 |
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| 作者单位： | 广东省国土资源技术中心,广东 广州,510075;广东省国土资源技术中心,广东 广州,510075 |
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| 摘 要： | 结合广东省机载LiDAR点云获取与高精度DEM建设项目，介绍了项目总体技术路线，针对项目难点，从设备选择、点云密度设计、植被覆盖密集山区数据获取方法、点云数据分类组合算法、空白区处理等5个方面的关键技术进行了探讨，并提出解决方案，为同类项目的设计与实施提供参考。
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| 关 键 词： | 机载LiDAR DEM 点云密度 数据获取 点云数据分类 |
| 收稿时间： | 2018-11-26 |
| 修稿时间： | 2019-01-15 |
Research on key technologies of acquisition of airborne LiDAR point cloud data and high-precision DEM |
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| YANG Huishan,LEI Lizhen.Research on key technologies of acquisition of airborne LiDAR point cloud data and high-precision DEM[J].Bulletin of Surveying and Mapping,2019,0(3):124-127. |
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| Authors: | YANG Huishan LEI Lizhen |
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| Institution: | Land & Resources Technology Center of Guangdong Province, Guangzhou 510075, China |
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| Abstract: | This paper introduces the general technical route based on the airborne LiDAR point cloud data acquisition and high-precision DEM construction in Guangdong Province.For solving the difficulties,the paper researched some key technologies and solutions from five aspects:equipment selection,point cloud density design,data obtained method in mountainous areas covered densely,point cloud data classification and combination algorithm,and blank area processing.Research of this paper will be beneficial for the design and implementation of similar projects. |
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| Keywords: | airborne LiDAR DEM point cloud density data acquisition point cloud data classification |
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