| 利用三维激光扫描技术检测建筑物平整度及垂直度 |
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| 引用本文： | 王二民,郭际明,杨飞,宋胜登,于旭阳.利用三维激光扫描技术检测建筑物平整度及垂直度[J].测绘通报,2019,0(6):85-88. |
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| 作者姓名： | 王二民 郭际明 杨飞 宋胜登 于旭阳 |
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| 作者单位： | 武汉大学测绘学院,湖北 武汉,430079;中国水利水电第四工程局有限公司,青海 西宁,810007 |
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| 基金项目： | 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） |
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| 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。
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| 关 键 词： | 三维激光扫描 点云数据 平整度 垂直度 平面拟合 |
| 收稿时间： | 2018-09-04 |
Detection of flatness and verticality of buildings based on 3D laser scanning technology |
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| WANG Ermin,GUO Jiming,YANG Fei,SONG Shengdeng,YU Xuyang.Detection of flatness and verticality of buildings based on 3D laser scanning technology[J].Bulletin of Surveying and Mapping,2019,0(6):85-88. |
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| Authors: | WANG Ermin GUO Jiming YANG Fei SONG Shengdeng YU Xuyang |
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| Institution: | 1. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;
2. Sinohydro Engineering Bureau 4 Co., Ltd., Xining 810007, China |
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| 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. |
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| Keywords: | 3D laser scanning point clouds data flatness verticality plane fitting |
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