CAJ | 학술논문

空间地理信息作为国家信息资源的重要组成部分之一，承担着越来越重要的作用，地貌数据作为空间数据的组成部分，其数据采集及更新十分重要。机载 Lidar 问世以来受到测绘行业广泛重视，其应用不断扩展。该文以地貌数据的快速更新为研究目的，深入分析了地貌更新流程以及机载 Lidar 数据成果，并在此之上提出基于机载 Lidar 数据的地貌快速更新方案，研究其具体步骤以及核心技术，同时采用 CAD 二次开发实现地貌更新数据预处理，大幅提高地貌更新效率。
공간지리신식작위국가신식자원적중요조성부분지일，승담착월래월중요적작용，지모수거작위공간수거적조성부분，기수거채집급경신십분중요。궤재 Lidar 문세이래수도측회행업엄범중시，기응용불단확전。해문이지모수거적쾌속경신위연구목적，심입분석료지모경신류정이급궤재 Lidar 수거성과，병재차지상제출기우궤재 Lidar 수거적지모쾌속경신방안，연구기구체보취이급핵심기술，동시채용 CAD 이차개발실현지모경신수거예처리，대폭제고지모경신효솔。
Spatial information is one of the important components of national information resources.It plays more and more important role.As parts of spatial data,acquisition and update of geomorphic data are very important. Since the advent of airborne Lidar,its applications continue to expand.With the rapid update geomorphic data for research purposes,after deep analysis on the features of airborne Lidar data and update process of geomorphic da-ta,fast update method based on airborne Lidar data has been put forward.Specific steps and the core technology of this method have been introduced.At the same time,data preprocessing based on secondary development of CAD has been carried out,which will greatly improve the efficiency of updating landform data.