| 基于机载激光雷达数据的DEM获取及应用 |
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| 引用本文： | 周淑芳,李增元,范文义,庞勇,陈尔学,李晓松.基于机载激光雷达数据的DEM获取及应用[J].遥感技术与应用,2007,22(3):356-360. |
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| 作者姓名： | 周淑芳 李增元 范文义 庞勇 陈尔学 李晓松 |
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| 作者单位： | (1.东北林业大学,黑龙江 哈尔滨 150040;2.中国林业科学研究院资源信息研究所,北京 100091) |
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| 基金项目： | 国家高技术研究发展计划(863计划);引进国际先进农业科技计划(948计划);中国林业科学院科研项目 |
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| 摘 要： | 作为直接获取对象表面点三维坐标的现代对地观测技术,激光雷达技术能够快速获取高精度地面高程模型。基于Lidar系统所获取的点云数据,通过过滤处理将区域纯地形特征信息与地物信息相分离,最终生成高精度的DEM,并在此基础上对同步获取的数码影像进行了正射纠正,为进一步的信息提取、定量分析及实体建模奠定基础。
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| 关 键 词： | 机载激光雷达 三维点云 DEM 过滤 正射纠正 |
| 文章编号： | 1004-0323（2007）03-0356-05 |
| 收稿时间： | 2006-12-04 |
| 修稿时间： | 2006-12-042007-02-12 |
DEM Extraction and Its Application Based on Airborne Lidar Data |
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| ZHOU Shu-fang,LI Zeng-yuan,FAN Wen-yi,PANG Yong,CHEN Er-xue,LI Xiao-song.DEM Extraction and Its Application Based on Airborne Lidar Data[J].Remote Sensing Technology and Application,2007,22(3):356-360. |
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| Authors: | ZHOU Shu-fang LI Zeng-yuan FAN Wen-yi PANG Yong CHEN Er-xue LI Xiao-song |
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| Affiliation: | (1.Northeast Forestry University,Harbin, 150040China; 2.Research Institute of Forest Resource Information Techniques,CAF,Beijing100091,China) |
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| Abstract: | As a modern global observation technology which can obtain the three-dimensional coordinate of surface of objects directly,Lidar(light detection and ranging)remote sensing can extracted Digital Elevation Model(DEM) quickly.In the study,the point-clouds data from Lidar system were filtered and classified to separate the information of pure terrain from that of the objects,DEM was extracted and then the orthophoto map for Aerial Photos which were simultaneous with the Lidar data were produced.It will be based for information acquisition,quantitative analysis and substantiality modeling in further research. |
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| Keywords: | DEM |
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