CAJ | 학술논문

机载LiDAR作为一种新兴的对地观测技术，能够快速地获取地表三维信息。如何从海量LiDAR点云数据中提取建筑物是数据处理中的一项关键工作。本文结合LiDAR数据和航空影像的数据特点，提出了一种航空影像辅助的LiDAR点云建筑物提取方法，首先，采用面向对象方法从航空影像中提取建筑物的轮廓；然后，以建筑轮廓信息为参考，从LiDAR点云中提取建筑物的点云数据；最后，通过实验证明该方法的有效性与可行性。
궤재LiDAR작위일충신흥적대지관측기술，능구쾌속지획취지표삼유신식。여하종해량LiDAR점운수거중제취건축물시수거처리중적일항관건공작。본문결합LiDAR수거화항공영상적수거특점，제출료일충항공영상보조적LiDAR점운건축물제취방법，수선，채용면향대상방법종항공영상중제취건축물적륜곽；연후，이건축륜곽신식위삼고，종LiDAR점운중제취건축물적점운수거；최후，통과실험증명해방법적유효성여가행성。
As a new earth observation technology, Airborne LiDAR can quickly obtain information of three -dimensional surface.Howto extract buildings from massive LiDAR point cloud data is a key work of data processing .Combined with LiDAR data and aerial imagerydata, this paper proposed a method of building extraction from LiDAR point clouds method using aerial images assists .First, extractthe contour of buildings from aerial imagery with object -oriented method, and then building outline information for reference ,extract building data from LiDAR point cloud.Finally, experiments demonstrate the effectiveness and feasibility of the method , andhave some practical value.