| ????LiDAR??????н??????????????о? |
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| 引用本文： | 李峰,崔希民,袁德宝,王冠杰,李萌.????LiDAR??????н??????????????о?[J].大地测量与地球动力学,2013,33(2):124-127. |
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| 作者姓名： | 李峰 崔希民 袁德宝 王冠杰 李萌 |
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| 作者单位： | 中国矿业大学(北京)地球科学与测绘工程学院,北京,100083 |
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| 摘 要： | ?????????LiDAR?????з??????????????????y????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????Χ??????????????????????????С?????????????????????????С???????????3???????????????????????????????Ч??????????????????????????????????92%??
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| 关 键 词： | ????LiDAR ???? ?????? ??? ??? |
| 收稿时间： | 2012-09-23 |
EXTRACTION OF URBAN BUILDING FACETS FROM LIDAR POINT CLOUDS |
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| Li Feng,Cui Ximin,Yuan Debao,Wang Guanjie,Li Meng.EXTRACTION OF URBAN BUILDING FACETS FROM LIDAR POINT CLOUDS[J].Journal of Geodesy and Geodynamics,2013,33(2):124-127. |
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| Authors: | Li Feng Cui Ximin Yuan Debao Wang Guanjie Li Meng |
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| Affiliation: | College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing 100083 |
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| Abstract: | The airborne LiDAR technology provides a new and rapid way for detecting 3D building. In order to separate building points from mass LiDAR point clouds, a progressive densifying TIN method is first used to filter terrain points, and then top surface points of building are classified with principal component and normal vector. After initial building facets are segmented with region growing method, some fence regions are removed and small holes are filled by using morphological closing operator. Ultimately, small vegetation regions are erased on the basis of area criterion of building. Three sampled complex urban areas are selected to test extraction effects of building. The results show that the efficiency and quality of building defection with this method are better than 92%. |
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| Keywords: | airborne LiDAR point clouds building facets extraction |
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