采空区三维激光扫描点云数据处理技术

doi:10.12068/j.issn.1005-3026.2016.11.024

东北大学学报:自然科学版 ›› 2016, Vol. 37 ›› Issue (11): 1635-1639.DOI: 10.12068/j.issn.1005-3026.2016.11.024

采空区三维激光扫描点云数据处理技术

秦亚光，罗周全，汪伟，郑开欢

(中南大学资源与安全工程学院，湖南长沙410083)

收稿日期:2015-06-03 修回日期:2015-06-03 出版日期:2016-11-15 发布日期:2016-11-18
通讯作者: 秦亚光
作者简介:秦亚光(1990-)，男，河南漯河人，中南大学博士研究生；罗周全(1966-)，男，湖南邵阳人，中南大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(51274250).

Cavity Three-Dimensional Laser Scanning Point Cloud Data Processing Technology

QIN Ya-guang， LUO Zhou-quan， WANG Wei， ZHENG Kai-huan

School of Resources and Safety Engineering， Central South University， Changsha 410083， China.

Received:2015-06-03 Revised:2015-06-03 Online:2016-11-15 Published:2016-11-18
Contact: QIN Ya-guang
About author:-
Supported by:
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摘要/Abstract

摘要： 由于井下环境的复杂性，借助三维激光扫描仪获取的采空区边界三维空间信息点云数据中不可避免包含一些噪声点.为此，提出曲率-弦长比复合判据实现了对点云数据中高频噪声点的过滤处理，并运用随机滤波法去除点云数据中的低频随机噪声点，通过分段低次插值法实现空区模型曲线光顺处理.结果表明:过滤及光顺处理不仅有效去除了采空区点云数据中的噪声点，同时避免了采空区三维模型构建中自相交情况的出现，达到了采空区三维模型精确构建的目的.

关键词: 采空区, 三维激光扫描, 点云数据, 噪声过滤, 光顺处理

Abstract: Aiming at noise points in point cloud data detected by three-dimensional laser in cavity， curvature-chord ratio composite criterion was put forward for filtering and simplifying significant noise points. Besides， random filter algorithm was applied to reduce low frequency random noise points similar to the change of object. The piecewise low-order interpolation method was applied to fit cavity point cloud based on reduction and simplifying， thus the curve became smoother than before and after treatment. The application results show that the noise points in point cloud data detected by three-dimensional laser in cavity are effectively removed by filtering and smoothing treatment. Furthermore， the self-intersection in model is avoided. Therefore， cavity models generated by processed point cloud data are extremely identical to engineering practice.

Key words: cavity, three-dimensional laser scanning, point cloud data, noise filtering, smoothing treatment

中图分类号:

TD76

秦亚光，罗周全，汪伟，郑开欢. 采空区三维激光扫描点云数据处理技术[J]. 东北大学学报:自然科学版, 2016, 37(11): 1635-1639.

QIN Ya-guang， LUO Zhou-quan， WANG Wei， ZHENG Kai-huan. Cavity Three-Dimensional Laser Scanning Point Cloud Data Processing Technology[J]. Journal of Northeastern University Natural Science, 2016, 37(11): 1635-1639.

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采空区三维激光扫描点云数据处理技术

Cavity Three-Dimensional Laser Scanning Point Cloud Data Processing Technology

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