基于曲线内插法的点云空洞修补应用研究  

Research on the Application of Point-cloud Holes′Repair AlgorithmBased on Curve Interpolation Method

作　　者：孟涛[1] 王轲 任峰[1] 马治忠[1] 严晋 MENG Tao;WANG Ke;REN Feng;MA Zhizhong;YAN Jin(North China Sea Marine Technical Support Center,State Oceanic Administration,Qingdao 266033,China;The First Institute of Oceanography,MNR,Qingdao 266033,China)

机构地区：[1]国家海洋局北海海洋技术保障中心,山东青岛266033 [2]自然资源部第一海洋研究所,山东青岛266033

出　　处：《测绘与空间地理信息》2021年第11期173-175,179,共4页Geomatics & Spatial Information Technology

摘　　要：在三维扫描中,由于扫描设备自身的限制或待测地形(物)的特点,获取的点云数据中往往会有大量的空洞,不仅对后续的建模有影响,而且会导致生成的地形图失真,所以必须要对点云空洞进行修补。本文首先分析了曲线曲率内插法的工作原理,根据实际地形所测点云的空洞,并结合计算机软件,对点云空洞进行修补。对修补后的空洞点云,选取空洞处的点位,采用平差法,对修补点云进行精度分析和质量评价,从而论证了采用曲线曲率内插法进行点云空洞的修补是完全可行的。Limited by the characteristics of the 3D laser scanners and surveying terrain,there are abundant holes in observed cloud data.These data holes could both affect the subsequent modeling and make the topographic maps distorted,so it is necessary to repair the holes in point cloud.This paper analyzes principles of the interpolation methods and repairs the point-cloud holes from the terrain observations.We make a further accuracy analysis and quality evaluation on the repaired point cloud according to the adjustment of errors on the chosen feature points.The results show that the application of point-cloud holes repair algorithm with curve interpolation method is available.

关 键 词：三维扫描 点云空洞 曲线曲率内插法 空洞修补 

分 类 号：P225.2[天文地球—大地测量学与测量工程]