基于三维激光扫描的高层建筑物重构研究

Research on high-rise building reconstruction based on 3D laser scanning

传统的测量方法在土木工程领域中存在重构精度较低的问题。针对该问题,提出基于三维激光扫描的高层建筑物重构方法。对采集的点云数据进行预处理以及噪声剔除;利用SFM算法通过双目相机在目标建筑周围拍摄多组图像,手动选取图像的初始匹配特征点,计算相应的三维坐标,生成多组点云;利用ICP方法计算并优化多组点云之间的旋转矩阵以及平移向量完成融合,以达到高层建筑物重构的目的。实验结果以及相关数据分析显示,所提方法能够有效提高高层建筑物重构精度,实现高层建筑的三维重构。

The traditional measurement method has the problem of low reconstruction accuracy in the field of civil engineering.In order to solve this problem,a high-rise building reconstruction method based on three-dimensional laser scanning is proposed.The collected point cloud data are preprocessed and noise eliminated,the SFM algorithm is used to take multiple groups of images around the target building by binocular camera,the initial matching feature points of the image are manually selected,the corresponding three-dimensional coordinates are calculated,and the multi-group point clouds are generated,and the rotation matrix and translation vector between the multi-group point clouds are calculated and optimized by ICP method to complete the fusion in order to achieve the purpose of high-rise building reconstruction.The experimental results and the analysis of related data show that the method can effectively improve the reconstruction accuracy of high-rise buildings and realize three-dimensional reconstruction of high-rise buildings.