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
马远征 1马新博 1员欣淼 1陈延博 1李毛莉 1马婵1
作者信息
- 1. 自然资源部第二地形测量队,陕西西安 710054
- 折叠
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.
Abstract
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Key words
DEM/edge inspection/same projection zone/across projection zone/3D real scene引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据