基于多种软件的DEM生产方法探讨  

DEM Making Methods Based on Multiple Softwares

作　　者：赵莎莎 王伟丽 徐文会 ZHAO Shasha;WANG Weili;XU Wenhui(The First Institute of Photogrammetry and Remote Sensing,MNR,Xi′an,Shaanxi,710054,China;Xi′an Piesat Information Technology Co.,Ltd.,Xi′an,Shaanxi,710005,China)

机构地区：[1]自然资源部第一航测遥感院,陕西西安710054 [2]西安航天宏图信息技术有限公司,陕西西安710005

出　　处：《测绘标准化》2022年第1期40-43,共4页Standardization of Surveying and Mapping

摘　　要：数字高程模型是基础地理信息数字成果的重要组成部分,随着实景三维中国建设项目的开展,DEM成果发挥的作用将越来越重要。结合大批量的DEM生产实践和多种数据处理软件的优势,提出一种高精度DEM的生产方法,并结合实际测区,重点对水体自动提取、立体匹配和DEM编辑等技术进行探讨,为快速、高效大批量生产高精度DEM成果提供参考。DEM is an important part of digital achievements of basic geographic information.With the development of realistic 3D construction projects in China,DEM achievements are playing an increasingly important role.Combined with the production practice of mass DEM and the advantages of various data processing software,a production method of high precision DEM is proposed,and combined with the actual survey area,the automatic extraction of water body,3D matching and DEM editing techniques are discussed,which can provide reference for the rapid and efficient mass production of high precision DEM.

关 键 词：数字高程模型 水体提取 自动匹配 

分 类 号：P231.5[天文地球—摄影测量与遥感]