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Title:: Analysis of the LiDAR Point Cloud Background Values of the Typical,Rural,Residential Houses in Lushan,Sichuan Province

作者:: 杨凡¹; 2; 3; 温超²; 范志伟²; 刘晓丹²; 李晓丽⁴; 李志强⁴; 王晓山¹; 2; (1.河北红山巨厚沉积与地震灾害国家野外科学观测研究站,河北邢台 055350; 2.河北省地震局,河北石家庄 050021; 3.中国地震局地质研究所,北京 100029; 4.中国地震台网中心,北京 100045)

Author(s):: YANG Fan¹; 2; 3; WEN Chao²; FAN Zhiwei²; LIU Xiaodan²; LI Xiaoli⁴; LI Zhiqiang⁴; WANG Xiaoshan¹; 2; (1.Hebei Hongshan National Observatory on Thick Sediments and Seismic Hazards,Xingtai 055350,Hebei,China)(2.Hebei Earthquake Agency,Shijiazhuang 050021,Hebei,China)(3.Institute of Geology,China Earthquake Administration,Beijing 100029,China)(4.China Earthquake Networks Center,Beijing 100045,China)

Keywords:: LiDAR; point cloud; background value; typical rural houses; masonry structure; the Lushan M_S7.0 earthquake

摘要:: 使用地基三维激光扫描仪,采集了2013年四川芦山7.0级地震灾区农村典型民居基本完好砌体建筑物140个独立墙面的高精度LiDAR点云数据。根据标准差原理,采用统计回归分析方法,对LiDAR数据进行了处理,分析和验证LiDAR点云数据背景值区间。结果表明:芦山地区农村典型民居砌体结构建筑物墙面的LiDAR点云数据背景值区间为0～0.45 cm,并证实其合理性。

Abstract:: Using a terrestrial laser scanner,we collect the high-precision LiDAR point cloud data of the independent walls of the barely damaged masonry structures of the typical residential houses in rural areas hit by the 2013 Lushan,Sichuan M_S7.0 earthquake.Then,on the basis of the standard deviation principle,and using statistical regression method,we process the obtained LiDAR data.We find that the interval of background values of the LiDAR point cloud data is 0-0.45 cm.