建筑内噪声点云去除的扫描光线截断法

doi:10.13474/j.cnki.11-2246.2021.0268

测绘通报 ›› 2021, Vol. 0 ›› Issue (9): 28-31.doi: 10.13474/j.cnki.11-2246.2021.0268

建筑内噪声点云去除的扫描光线截断法

王果^1,2, 李峰³, 陈超¹, 蔡庆空¹, 杨亚伦²

1. 河南工程学院土木工程学院, 河南郑州 451191;
2. 河南理工大学测绘与国土信息工程学院, 河南焦作 454000;
3. 防灾科技学院防灾工程系, 河北三河 065201

收稿日期:2020-09-10 出版日期:2021-09-25 发布日期:2021-10-11
作者简介:王果(1986-),男,博士,讲师,主要从事三维数据获取与处理方面及测绘软件开发方面的研究工作。E-mail:wg@haue.edu.cn
基金资助:
河南省科技攻关计划项目（202102310333）；河南省重点研发与推广专项（182102310001；192102310001）；河南省高等学校重点科研项目（18B170003）；河南工程学院博士基金（D2015040）

Scanning ray truncation method for removing the noise point cloud inside buildings

WANG Guo^1,2, LI Feng³, CHEN Chao¹, CAI Qingkong¹, YANG Yalun²

1. Institute of Civil Engineering, Henan University of Engineering, Zhengzhou 451191, China;
2. Surveying and Land Information Engineering College, Henan Polytechnic University, Jiaozuo 454000, China;
3. Department of Disaster Prevention Engineering, Institute of Disaster Prevention, Sanhe 065201, China

Received:2020-09-10 Online:2021-09-25 Published:2021-10-11

摘要/Abstract

摘要： 建筑内部噪声点云由于不同风格的家具及遮挡问题，分布规律比较复杂且通常与建筑立面粘连，难以通过交互的方式去除。针对这一问题，本文提出了一种建筑内噪声去除的扫描光线截断法。该方法首先分割建筑面片；然后将扫描中心点与点云组成的扫描光线与建筑立面求交；最后通过比较扫描光线的长度和扫描中心点与交点的距离，利用建筑立面截断扫描光线，从而在保持原始采样间隔的情况下自动去除建筑内部噪声点云。试验结果表明，该方法能较好地去除建筑内部的噪声点。

关键词: 地面激光扫描, 建筑内部, 建筑立面, 扫描光线截断法, 噪声点云

Abstract: Due to different styles of furniture and occlusion, the distribution of noise point cloud inside buildings is more complex and adhesion with building facade, which make it difficult to be removed by interactive way. In order to solve this problem, a scanning ray truncation method is proposed in this paper. Firstly, the building surface is segmented, and then the intersection between the scanning ray composed of the scanning center point and the point cloud and the building facade is obtained. By comparing the length of the scanning ray with the distance between the scanning center point and the intersection point, the scanning ray can be cut off by the building facade, so as to remove the interior noise point cloud automatically while maintaining the original sampling interval. The experimental results show that the proposed method can effectively remove the interior noise points.

Key words: ground laser scanning, interior of building, building façade, scanning ray truncation, noise point cloud

中图分类号:

王果, 李峰, 陈超, 蔡庆空, 杨亚伦. 建筑内噪声点云去除的扫描光线截断法[J]. 测绘通报, 2021, 0(9): 28-31.

WANG Guo, LI Feng, CHEN Chao, CAI Qingkong, YANG Yalun. Scanning ray truncation method for removing the noise point cloud inside buildings[J]. Bulletin of Surveying and Mapping, 2021, 0(9): 28-31.

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建筑内噪声点云去除的扫描光线截断法

Scanning ray truncation method for removing the noise point cloud inside buildings

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