北京测绘2025，Vol.39Issue(7)：986-992,7.DOI:10.19580/j.cnki.1007-3000.2025.07.009
三维激光扫描技术在古塔建筑垂直度检测中的应用
Application of 3D laser scanning technology in verticality detection of ancient tower architecture
摘要
Abstract
The verticality of ancient tower architecture is typically detected using methods such as the"plumb line method","laser plumb bob method",and"total station method".These methods are inefficient,and during field operations and data processing,human errors may occur,preventing accurate measurement results.This study proposed the use of three-dimensional(3D)laser scanning technology.Based on the"hand-drawn expanded body"for layer-wise centroid fitting,a"numerical simulation iterative fitting"least squares method was introduced to compute the tower's deviation and verticality.The main process involved training and optimizing the point cloud model registration using the K-nearest neighbor algorithm(KNN),slicing the ancient tower model,and then inputting the coordinates of each sliced point cloud into numerical programming software to obtain the centroid fitting for each layer.The verticality was determined based on the centroids of different layers.This method was applied and tested in the Chengling Tower detection project in Zhendian County.A comparison of the verticality detection results and processing times between the two fitting methods shows that the difference is within 0.16%,and the new method reduces data processing time by 88%,verifying its accuracy and efficiency.关键词
古塔建筑/三维激光扫描/垂直度检测/手绘扩展体/数值模拟迭代拟合Key words
ancient tower architecture/three-dimensional(3D)laser scanning/verticality detection/hand-drawn expanded body/numerical simulation iterative fitting分类
天文与地球科学引用本文复制引用
薛志坤,李亚然,刘落落,杜一猛,赵士永..三维激光扫描技术在古塔建筑垂直度检测中的应用[J].北京测绘,2025,39(7):986-992,7.基金项目
河北省科技厅课题(2023-2113,236Z4506G) （2023-2113,236Z4506G）
