Three Dimensional Data Acquisition and Comparison with CAD Models for Quality management of Building Components

为了将三维扫描仪获得的点云用于质量管理，笔者将点云分析方法和点云与三维CAD模型的对比方法应用到实际加固工作中。在此基础上，对钢筋模型的三维CAD降阶方法进行了系统化研究，提出了忽略点云噪声的方法和从点云中提取钢筋的方法。从而验证了三维CAD模型与点云模型比较的可能性。

To use the point cloud obtained by the 3D scanner for quality management, the authors have applied the point cloud analysis method and the comparison method of point cloud and 3D CAD models to the actual reinforcing work. As a result of the research, the authors have systematized the 3D CAD method to reduce the reinforcement model, and developed the method to neglect point cloud noise as well as the method to extract reinforcing bars from point cloud. Thus, they have verified the possibility of the comparison between 3D CAD models and the point cloud models.