Building Completion Survey Based on Handheld Laser Scanner System
In order to explore the application prospect of new surveying and mapping technology in building completion survey,this pa-per applies handheld laser scanner to building completion survey.Firstly,the point cloud data in the test area are collected by the ZEB-REVO RT handheld laser scanner in the field,and the laser point cloud data meeting the production requirements are obtained through the indoor point cloud data calculation,point cloud data processing and point cloud coordinate conversion;secondly,it con-ducts building terrain extraction and editing based on point cloud data;finally,through the traditional accuracy verification method of high-accuracy mapping results,the accuracy verification of completed terrain results based on point cloud data is carried out.The ex-perimental results show that the point position planimetric accuracy of the completed building based on the mobile handheld laser point cloud data is±3.7 cm,and the mean square error of side length is±2.3 cm,which meets the accuracy requirements in the code for urban surveying.