| 机载激光雷达林区数字高程模型的建立 |
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| 引用本文： | 苏永涛,邢艳秋,焦义涛,邢万里,尤号田.机载激光雷达林区数字高程模型的建立[J].东北林业大学学报,2017,45(10). |
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| 作者姓名： | 苏永涛 邢艳秋 焦义涛 邢万里 尤号田 |
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| 作者单位： | 东北林业大学,哈尔滨,150040 |
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| 基金项目： | 黑龙江省博士后基金项目，林业公益性行业科研专项经费，国家重点基础研究发展计划项目 |
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| 摘 要： | 选择地处草原和森林过渡地带的上库力农场作为研究区(E120°36'50.48″~120°52'56.53″,N50°21'11.08″~50°24'32″),由机载激光雷达Leica ALS60采集实验数据,对Terra Solid分类获取的地形点建立数字高程模型(DEM);利用IDL编译一次样条有限元内插法对点云数据进行分块处理,分析生产DEM的精度。结果表明:1.0、1.5、2.0 m三种不同分辨率的DEM精度,分别为0.034、0.078、0.096 m。
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| 关 键 词： | 机载激光雷达 点云数据 数字高程模型 一次样条有限元法 |
E stablishment of DEM in Forest Area with Airborne Laser Radar |
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| Su Yongtao,Xing Yanqiu,Jiao Yitao,Xing Wanli,You Haotian.E stablishment of DEM in Forest Area with Airborne Laser Radar[J].Journal of Northeast Forestry University,2017,45(10). |
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| Authors: | Su Yongtao Xing Yanqiu Jiao Yitao Xing Wanli You Haotian |
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| Abstract: | The grassland and forest transition zone library force the Shang Ku Li farm as study area (E120°50.48′36″-120°52′56.53″, N50°21′11.08″-50 °24′32″) were selected .The point cloud data was acquired by the airborne laser scanning (ALS) technique of Leica ALS60.The ground points were classified by the TerraSolid software , and the digital elevation model ( DEM) was created by a spline finite element interpolation method which was compiled by IDL .The accuracy of DEM were 0.034, 0.078, and 0.096 m when the resolution were 1.0, 1.5 and 2.0 m, respectively. |
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| Keywords: | Kye words Airborne laser scanning Point cloud data Digital elevation model A spline finite element method |
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