| 基于坡度自适应的机载LiDAR分割算法 |
| |
| 引用本文： | 梁鑫,杨晓云.基于坡度自适应的机载LiDAR分割算法[J].测绘科学,2013,38(2):72-74. |
| |
| 作者姓名： | 梁鑫 杨晓云 |
| |
| 作者单位： | 1. 广西工学院土木建筑工程系,广西柳州,545006
2. 广西工学院土木建筑工程系,广西柳州545006;西南交通大学地球科学与环境工程学院,成都610031 |
| |
| 基金项目： | 广西教育厅科研项目，广西工学院科学科研项目，新世纪广西高等教育教学改革工程"十一五"立项项目 |
| |
| 摘 要： | 本文提出了一种适用于离散LiDAR数据的区域生长算法:将离散点云数据重采样为规则格网,通过坡度自适应区域生长法分割规则格网,获得不同的面片;建立各个分割面片之间的拓扑关系,将分割面片划分为粗差、植被、建筑物和地面;检测原始激光脚点到DTM的距离,判断是否为地面点。文中采用ISPRS提供的测试数据验证了算法分割的有效性。
|
| 关 键 词： | 激光雷达测距 自适应坡度 区域生长 分割 分类 |
Slope adaptive based segmentation for airborne LiDAR |
| |
| LIANG Xin,YANG Xiao-yun.Slope adaptive based segmentation for airborne LiDAR[J].Science of Surveying and Mapping,2013,38(2):72-74. |
| |
| Authors: | LIANG Xin YANG Xiao-yun |
| |
| Institution: | ①②(①Department of Civil Engineering,Guangxi University of Technology,Guangzhou Liuzhou 545006,China;②Faculty of Geosciences and Environmental Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
| |
| Abstract: | In this paper an improved region growing for discrete LiDAR data was algorithm presented: firstly,the raw data was re-sampled to grid,density and usage intention,and the slope adaptive region growing was used to segment grid cells to different surface patches;secondly,segmentation adjacency was established based on topological analysis,and the segmentations were classified as terrain,building,vegetation and others;finally,the grid cells classified as terrain were used to build approximation of the terrain surface,as DTM,and the raw data were accepted as terrain point within a given distance from the surface.To illustrate the effectiveness of the new procedure for LiDAR segmentation,one reference data set from ISPRS was tested. |
| |
| Keywords: | LiDAR adaptive slope region growing segmentation classification |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
