机载LiDAR点云数据平面特征提取  

Extraction of planar characteristics of airborne LiDAR point cloud data

作　　者：艾效夷[1] 王丽英[1] 

机构地区：[1]辽宁工程技术大学测绘与地理科学学院,辽宁阜新123000

出　　处：《辽宁工程技术大学学报（自然科学版）》2015年第2期212-216,共5页Journal of Liaoning Technical University (Natural Science)

基　　金：辽宁省教育厅科学技术研究项目(12-1176);高等学校博士学科点专项科研基金资助项目(20122121120002);对地观测技术国家测绘地理信息局重点实验室基础测绘经费资助项目(K201207)

摘　　要：为从大量的Li DAR点云中分离出建筑物点类,获得平面特征,借鉴传统的Hough变换思想,提出一种提取机载Li DAR点云数据平面特征的方法,综合采用三维空间中Hough变换以及区域增长算法从点云数据中提取特征平面信息.研究结果表明:通过该方法可有效的提取出点云数据中的平面特征,建筑物的平面特征被检测出来之后,有助于完成建筑物的自动建模.In order to separate buildings from the point of a large number of Li DAR point data,and obtain the planar characteristics,this paper put forward an airborne Li DAR point cloud data plane feature extraction method based on the traditional Hough transform ideas,using a combination of plane information and Hough transform algorithm regional growth in three-dimensional space to extract features from point cloud data.The results show that the method can effectively extract the plane characteristics of point cloud data,and after the plane characteristics of buildings are detected,it can contribute to completion of the automatic modeling for buildings.

关 键 词：机载Li DAR 平面特征 特征提取 HOUGH变换 区域增长 

分 类 号：P231[天文地球—摄影测量与遥感]