高分七号与资源三号立体影像测图精度对比分析  

Comparative Analysis of the Mapping Accuracy of GF-7 and ZY-3 Stereoscopic Images

作　　者：黄振妥 谢武强[1] HUANG Zhentuo;XIE Wuqiang(Guangzhou Urban Planning Survey and Design Institute,Guangzhou 510000,China)

机构地区：[1]广州市城市规划勘测设计研究院,广东广州510000

出　　处：《测绘与空间地理信息》2024年第12期100-103,共4页Geomatics & Spatial Information Technology

摘　　要：针对当前我国1∶10000基础地理信息数据产品需求,本文以国产的高分七号和资源三号03星立体影像为数据源,在收集测试区域控制资料的基础上,利用两种数据源的前、后视影像构建立体像对模型,分别生成数字正射影像、数字线化图和数字高程模型等基础测绘产品,利用外业控制资料对比分析不同地形条件下,两种数据源生成的测绘产品平面精度和高程精度差异。结果表明:两种数据源分别可以满足我国1∶10000、1∶25000及更大比例尺基础地理信息产品的成果精度要求。In view of the current demand for 1∶10000 scale basic geographic information data products in China,this paper takes the domestic stereoscopic images of GF-7 and ZY-303 satellite as the data source,on the basis of collecting the control data of the test area,constructs the stereopair models by using the front and back view images of the two data sources to generate digital orthophoto,digital linear graphic,digital elevation model,and other basic surveying and mapping products,uses field control data to compare and analyze the difference of horizontal and vertical accuracy of surveying and mapping products generated by two data sources under different terrain conditions.The results show that the stereoscopic mapping accuracy of GF-7 is obviously better than that of ZY-303 satellite and the two data sources can meet the accuracy requirements of 1∶10000 and 1∶25000 scale mapping production and the larger scale basic geographic information products,respectively.

关 键 词：高分七号 资源三号 立体像对模型 基础地理信息数据 

分 类 号：P228[天文地球—大地测量学与测量工程]