| TerraScan在LiDAR点云滤波中的应用研究 |
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| 引用本文： | 史建青,史照良.TerraScan在LiDAR点云滤波中的应用研究[J].淮海工学院学报,2011(3):46-49. |
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| 作者姓名： | 史建青 史照良 |
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| 作者单位： | [1]淮海工学院测绘工程学院,江苏连云港222005 [2]江苏省测绘局,江苏南京210013 [3]武汉大学测绘学院,湖北武汉430079 |
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| 基金项目： | 江苏省测绘科研项目（JSCHKY201114） |
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| 摘 要： | 简要介绍了机载LiDAR的发展现状,从原始LiDAR点云中滤波出真实的地面点是生成DEM和其他数字产品的基础和关键。TerraScan是一种机载LiDAR点云滤波商业软件,对其滤波算法进行了详细分析,利用山地、丘陵地和平地3种不同地形的LiDAR数据,通过设置不同参数进行滤波试验。试验结果表明,其对平坦地区和城区有较好的滤波效果,但对地形变化较大的复杂山区滤波效果不够理想,有待进一步完善。
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| 关 键 词： | LiDAR TerraScan 地形 滤波 效果 |
Study on the Application of TerraScan to Filtering LiDAR Data Cloud |
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| SHI Jian-qing,SHI Zhao-liang.Study on the Application of TerraScan to Filtering LiDAR Data Cloud[J].Journal of Huaihai Institute of Technology:Natural Sciences Edition,2011(3):46-49. |
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| Authors: | SHI Jian-qing SHI Zhao-liang |
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| Affiliation: | 1.School of Geodesy ＆ Geomatics Engineering,Huaihai Institute of Technology,Lianyungang 222005,China;2.Jiangsu Provincial Bureau of Surveying ＆ Mapping,Nanjing 210013,China;3.School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China) |
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| Abstract: | The status quo for the development of airborne LiDAR was introduced.The filtered terrain points from airborne LiDAR point cloud is the foundation and key to make digital elevation and other digital production.We made a detailed analysis to the filtering algorithm of TerraScan,a commercial software of the airborne LiDAR point cloud filtering.We set different parameters and made filtering experiments on the basis of heterogeneous LiDAR point cloud data,including those of mountainous regions,uplands and planes.Experiment results showed that the filtering effect in urban and plane areas is better while that in mountainous regions with complex terrains is poorer,and therefore the algorithm needs further improvement. |
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| Keywords: | LiDAR TerraScan terrain filter effect |
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