测绘通报 ›› 2019, Vol. 0 ›› Issue (6): 85-88.doi: 10.13474/j.cnki.11-2246.2019.0190

• 技术交流 • 上一篇    下一篇

利用三维激光扫描技术检测建筑物平整度及垂直度

王二民1, 郭际明1, 杨飞1, 宋胜登2, 于旭阳2   

  1. 1. 武汉大学测绘学院, 湖北 武汉 430079;
    2. 中国水利水电第四工程局有限公司, 青海 西宁 810007
  • 收稿日期:2018-09-04 出版日期:2019-06-25 发布日期:2019-07-01
  • 作者简介:王二民(1994-),男,硕士生,主要从事三维激光扫描数据处理。E-mail:843866934@qq.com
  • 基金资助:

    国家自然科学基金(41474004);中国电力建设股份有限公司科研项目(KJ-2018-019)

Detection of flatness and verticality of buildings based on 3D laser scanning technology

WANG Ermin1, GUO Jiming1, YANG Fei1, SONG Shengdeng2, YU Xuyang2   

  1. 1. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;
    2. Sinohydro Engineering Bureau 4 Co., Ltd., Xining 810007, China
  • Received:2018-09-04 Online:2019-06-25 Published:2019-07-01

摘要:

利用地面三维激光扫描仪对某建筑物进行全自动高精度立体扫描,获得目标建筑物表面的三维空间点云信息,经过研究分析提出了一种根据点云提取建筑物中心轴线的方法,采用随机采样一致性算法(RANSAC)拟合直线,并采用整体最小二乘算法拟合平面。通过分析拟合平面及拟合直线的几何特征来检测建筑物的平整度和垂直度,实测数据分析结果表明,三维激光扫描技术在建筑物立面平整度及垂直度检测中具有较高的可行性和适用性。

关键词: 三维激光扫描, 点云数据, 平整度, 垂直度, 平面拟合

Abstract:

The point clouds information of the target building is obtained by using terrestrial laser scanner which embodies characteristics such as full automation, high precision, panoramic sweeps. After the analysis and research work, a method of extracting central axis of buildings based on point clouds is proposed. The random sample consensus (RANSAC) is used to fit the straight line. The fitting plane of point clouds adopt a method based on total least squares. The wall flatness and verticality of buildings are detected by analyzing the geometric characteristics of fitting planes and fitting straight lines. The result shows high feasibility and applicability in the detection of the wall flatness and verticality by using 3D laser scanning.

Key words: 3D laser scanning, point clouds data, flatness, verticality, plane fitting

中图分类号: