分幅DEM接边高程一致性检查方案设计与实现  

Design and implementation of consistency inspection of framing DEM edge elevation

作　　者：马远征 马新博 员欣淼 陈延博 李毛莉 马婵 MA Yuanzheng;MA Xinbo;YUAN Xinmiao;CHEN Yanbo;LI Maoli;MA Chan(The Second Topographic Surveying Brigade of the Ministry of Natural Resources,Xi’an,Shaanxi 710054,China)

机构地区：[1]自然资源部第二地形测量队,陕西西安710054

出　　处：《测绘技术装备》2024年第1期59-63,共5页Geomatics Technology and Equipment

摘　　要：数字高程模型(DEM)产品是实景三维中国建设的重要组成部分,制作接边合格的DEM产品对保障数据成果质量至关重要。本文针对分幅DEM接边高程一致性检查需求,设计了同投影带和跨投影带DEM接边检查方法及技术流程,并开发了相应的检查程序。试验表明,本文所提方法能够精准识别DEM接边处的高程值不一致误差,对作业人员和质检人员快速判定数据成果质量具有重要意义。DEM products are important parts of 3D real scene construction in China,and they are very important for qualified DEM products making to ensure the quality of data products.The method and technical process of edge inspection for DEMs in the same projection zone and across projection zones are designed in this paper,and the corresponding checking program is developed to meet the requirements of edge inspection for DEMs in the same projection zone.The experiment shows that the proposed method can accurately identify the elevation value inconsistency error at the edge of DEM,and it is of great significance for operators and quality inspectors to quickly determine the quality of data products.

关 键 词：数字高程模型 接边检查 同投影带 跨投影带 实景三维 

分 类 号：P208[天文地球—地图制图学与地理信息工程]