大型建筑多测站点云数据配准研究  

Research of point clouds registration based on reflectorless total station

作　　者：谢瑞[1,2] 程效军[1] 张鸿飞[1] 

机构地区：[1]同济大学土木工程学院测量与国土信息工程系,上海200092 [2]河南工程学院土木工程系,郑州451191

出　　处：《工程勘察》2010年第9期59-62,共4页Geotechnical Investigation & Surveying

基　　金：国家科技支撑计划课题(2006BAJ03A07)

摘　　要：地面三维激光扫描仪是一种新的空间数据采集设备,在实际应用中,常需要将多测站点云数据或其构成的模型数据转换到地面测量坐标中;无协作目标电子全站仪无需安置棱镜和反射片作为反射目标即能测定待定点的空间位置[1]。通过在扫描对象周围布设控制点,利用高精度无协作目标全站仪与地面三维激光扫描仪采集、拟合布设在研究对象上的靶标靶心坐标,根据摄影测量原理,利用同名点对,解算旋转参数和平移参数,实现扫描仪坐标系下的点云数据到地面测量坐标系的转换。点云数据靶心坐标的精确提取与全站仪靶心坐标的精确测量是实现坐标转换良好效果的基础。Terrestrial laser scanning is a new spatial data collection equipment.In practice,the multi-site point clouds or models often need to be converted into the geodetic coordinate system.Reflectorless total station can survey the coordinates of targets without prism or reflection.The targets center coordinates on the surface of scanning object are obtained by the high-precision reflectorless total station which is put on the control points around the scanning object,and the other target center coordinates are fitted by point clouds in laser scanning coordinate system,then the same target has two coordinates in the two different coordinate systems.According to the principle of photogrammetry, the coordinate transformation parameters including rotation parameters and translation parameters are solved,and then point clouds in the scanning coordinate system are converted into the geodetic coordinate system.The collection of high precision target center coordinates in different coordinate system is the key factor for achieving good results.

关 键 词：无协作目标电子全站仪 地面三维激光扫描 点云 靶心坐标 坐标转换 

分 类 号：P258[天文地球—测绘科学与技术]