一种基于DSM和DOM的地理信息数据采集方法  

A geographic information data acquisition method based on DSM and DOM

作　　者：梁爱曼 张海涛[1,2] 左效刚 周庆 LIANG Aiman;ZHANG Haitao;ZUO Xiaogang;ZHOU Qing(Beijing Institute of Surveying and Mapping,Beijing 100038,China;Beijing Key Laboratory of Urban Spatial Information Engineering,Beijing 100038,China)

机构地区：[1]北京市测绘设计研究院,北京100038 [2]城市空间信息工程北京市重点实验室,北京100038

出　　处：《北京测绘》2024年第4期502-508,共7页Beijing Surveying and Mapping

基　　金：城市空间信息工程北京重点实验室开放基金(2019101)。

摘　　要：针对航摄影像立体采集和人工外业测绘等方式的人员投入大、数据采集效率不高问题,本文通过数字正射影像图(DOM)数据、数字表面模型(DSM)数据及DOM数据生产过程中产生的辅助数据进行再利用,探索推扫式数据中高大地物的倒伏特点,解决数据生产过程中产生的投影差问题,形成了一种新的数据采集技术,并通过生产验证。试验结果表明这种方法打破了传统采集方式的束缚,不受软硬件和人员技能的约束,不仅能够实现基本比例尺地形图测绘功能、新型基础测绘地理实体采编功能,还可以实现建模数据采编功能。Aiming at the problems of large personnel input and low data acquisition efficiency in aerial photography three-dimensional acquisition and artificial field surveying and mapping.By reusing digital orthophoto map(DOM)data,digital surface model(DSM)data,and auxiliary data generated during DOM data production,this paper explored the lodging characteristics of tall ground objects in push-sweep data.The problem of projection difference during data production was solved,and a new data acquisition technology was formed and verified by production.The experimental results show that this method breaks the shackles of traditional acquisition methods and is not restricted by hardware,software,and personnel skills.It can realize the function of basic scale topographic map surveying and mapping,the function of new fundamental surveying and mapping geographic entity collecting and editing,and the function of modeling data collecting and editing.

关 键 词：地理信息数据采集 数字正射影像 投影差 投影纠正算法 推扫式遥感影像 

分 类 号：P258[天文地球—测绘科学与技术]