基于高分七号卫星影像的立体测图研究  

Research on Stereo Mapping Based on GF-7 Satellite Image

作　　者：张琴 李亚琼 ZHANG Qin;LI Ya-qiong(Jiangxi Institute of Natural Resources Surveying&Mapping and Monitoring,Nanchang Jiangxi 330002,China)

机构地区：[1]江西省自然资源测绘与监测院,江西南昌330002

出　　处：《地矿测绘》2023年第1期13-17,共5页Surveying and Mapping of Geology and Mineral Resources

基　　金：江西省自然资源厅科技创新项目(ZRKJ20222307)。

摘　　要：利用高分辨率卫星影像进行1∶10000 DLG数据生产,对省级基础测绘成果更新具有重要研究价值。文章结合亚米级高精度立体测绘卫星——高分七号卫星影像,通过布设不同数量像控点进行RPC空三处理,并经过外业实地检查,对空三后模型精度以及DLG成果精度进行检测。试验证明,模型精度并不完全取决于像控点的数量多少,更多依赖的是像控点布设的方式、布设是否均匀、影像中心是否布设像控点等,并且基于区域网模型的DLG成果精度要优于单景模型DLG成果。Using high-resolution satellite images to produce 1∶10000 DLG data has important research value for the update of provincial basic surveying and mapping results.In this paper,based on the image of the sub-meter high precision stereo mapping satellite,Gaofen-7(GF-7)satellite,RPC aerotriangulation processing was carried out by laying different number of image control points,and the accuracy of the air triangulation model and DLG results were tested after field inspection.The test results show that the model accuracy does not depend entirely on the number of image control points,but depends more on the layout of image control points,whether the layout is uniform,whether the image center is equipped with image control points,and the accuracy of DLG results based on area network model is better than that of DLG results based on single scene model.

关 键 词：高分七号卫星影像 1∶10000比例尺 立体测图 像控点布设 

分 类 号：P237[天文地球—摄影测量与遥感]