该文以某楼房作为研究对象，探究基于三维激光扫描的建筑立面测绘与三维模型构建技术。在现场踏勘基础上确定测站位置，在测站架设三维激光扫描仪获取点云数据后，依次采取点云配准、点云去噪、数据精简等预处理措施，提高点云数据质量。将点云数据封装后导入Geomagic Studio 2012 软件中构建点云模型，经过模型孔洞修补后检测精度，点位精度误差为 0。003 m，满足建模要求。将点云格式更改为las格式后输入到AutoCAD软件中绘制立面图，并使用建筑立面图和数码照片得到目标建筑物的三维实体模型，为建筑管理维护提供依据。
This paper takes a building as the research object to explore the building facade surveying and three-dimensional model construction technology based on three-dimensional laser scanning.The location of the station is determined based on on-site reconnaissance.After setting up a three-dimensional laser scanner at the station to obtain point cloud data,pretreatment measures such as point cloud registration,point cloud noise removal,and data streamlining are taken in turn to improve the quality of point cloud data.The point cloud data was encapsulated and imported into Geomagic Studio 2012 software to build a point cloud model.After repairing the model holes,the detection accuracy showed that the point accuracy error was 0.003 m,which met the modeling requirements.Change the point cloud format to las format and input it into AutoCAD software to draw elevations,and use the building elevations and digital photos to obtain a three-dimensional solid model of the target building,thus providing a basis for building management and maintenance.
3D laser scanningelevation surveyingpoint cloud data3D solid modelbuilding management and maintenance
万方数据
维普
