| 利用地面激光扫描数据进行建筑物变化检测 |
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| 引用本文： | 吕钊,康志忠.利用地面激光扫描数据进行建筑物变化检测[J].武汉大学学报(信息科学版),2011,36(11). |
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| 作者姓名： | 吕钊 康志忠 |
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| 作者单位： | 中国地质大学（北京）土地科学技术学院,北京市海淀区学院路29号,100083 |
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| 基金项目： | 国家自然科学基金资助项目(40801191); 对地观测技术国家测绘局重点实验室经费资助项目(2009-11); 国家教育部留学回国人员科研启动基金资助项目; 中央高校基本科研业务费专项资金资助项目(2010ZY22) |
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| 摘 要： | 利用地面激光扫描仪具有的数据获取速度快、精度高、实时性强、能全天候工作等优点,在快速获取三维点云的基础上,通过点云自动拼接、Hausdorff距离检测不同时期建筑物的三维模型变化,并改进了检测算法,提高了算法的执行效率。通过拟合平面构建Delaunay三角网求解变化区域的面积来评估灾害对建筑物的破坏程度,从而为灾害应急响应以及保险理赔等提供了可靠的决策依据。
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| 关 键 词： | 地面激光扫描 变化检测 点云拼接 Hausdorff距离 Delaunay三角剖分 |
Change Detection of Buildings Based on Terrestrial Laser Scanning Data |
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| LUE Zhao KANG Zhizhong.Change Detection of Buildings Based on Terrestrial Laser Scanning Data[J].Geomatics and Information Science of Wuhan University,2011,36(11). |
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| Authors: | LUE Zhao KANG Zhizhong |
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| Institution: | LUE Zhao1 KANG Zhizhong1(1 School of Land Science and Technology,China University of Geosciences,29 Xueyuan Road,Haidian District,Beijing 100083,China) |
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| Abstract: | Change detection has been widely applied in various fields.The fast and effective monitoring of change is involved in disaster dynamic monitoring,pollution monitoring and urban planning,etc.Terrestrial laser scanning is employed to detect the change of building models,taking the advantage of high speed,good precision,real-time,able to work around the clock,etc.The method consists of three steps: automatic point cloud registration;building change detection using optimized hausdorff distance algorithm from di... |
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| Keywords: | terrestrial laser scanning change detection point clouds registration Hausdorff distance Delaunay triangulation |
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