Calculating horizontal displacement of subsidence area based on laser point cloud data
3D laser scanning technology for the subsidence monitoring is mainly used for monitoring the subsidence of surface or feature of the vertical settlement, due to the lack of points with the same information, there is little use laser point cloud data of subsidence area level mobile monitoring research.In this paper, by constructing level mobile virtual monitoring, puts forward the calculating method of a horizontal direction.To the value quantity instead of the earths surface moves of the building, the building of the point cloud center of gravity as the virtual monitoring; before and after the first building feature point as the reference for mining houses to artificial coarse registration point cloud data, and then use the iterative closest point matching algorithm on the basis of the coarse registration for precise registration; To calculate the virtual monitoring spatial location difference before and after the registration, thus find out horizontal movement.Through the applied research on the method of the point cloud data, proved the effectiveness of the proposed method.
Horizontal movement 3D laser scanning ICP algorithm Barycentric coordinates Subsidence monitoring
Jie Liu YueguanYan Jun Li Xuesong Li Sicong Guo
College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing100083, China
国际会议
2015 International Academic Forum for Mine Surveying in China(2015中国国际矿山测量学术论坛)
北京
英文
356-361
2015-10-16（万方平台首次上网日期，不代表论文的发表时间）