基于扫描线和虚拟格网的LiDAR点云数据非兴趣点剔除方法  

Non-interest points elimination of LiDAR points cloud eliminate based on scan line and pseudo-grid

作　　者：陈永枫 徐青[1] 邢帅[1] 马桂云 靳国旺[1] 

机构地区：[1]信息工程大学测绘学院,河南郑州450052 [2]河南省电子产品质量监督检验所,河南郑州450003

出　　处：《测绘工程》2013年第6期27-30,共4页Engineering of Surveying and Mapping

基　　金：国家自然科学基金资助项目(40901247);测绘学院硕士创优基金(S201004)

摘　　要：非兴趣点的剔除,主要工作是将高程突变的单点、点簇,以及建筑物非顶部点云予以剔除,是机载LiDAR数据预处理的重要环节,也是建筑物提取的基础。文中分析LiDAR数据中非兴趣点的特点,针对传统基于扫描线剔除方法在剔除建筑物非顶部点云中存在的不足,提出一种基于扫描线和虚拟格网相结合的非兴趣点剔除方法。实验结果表明,算法能够有效地剔除非兴趣点,同时减少误剔除率。Eliminating non-interest points is one of important steps in data preprocessing of airborne LIDAR and basis of building extraction,which includes eliminating one point or points from anomaly height as well as non-top of building point-clouds.Combined with non-interest points characteristics of LIDAR data and traditional weaknesses,a new method is provided based on scan line and pseudo-grid.Experimental results show that the proposed method is more adaptive to eliminate the non-interest points and to reduce the wrong rate.

关 键 词：LIDAR 非兴趣点剔除 扫描线 虚拟格网 

分 类 号：P237[天文地球—摄影测量与遥感]