基于资源三号03星影像的立体测图精度评价  

Accuracy evaluation of stereo mapping based on images from 03 satellite of ZY-3

作　　者：饶杨莉 张玉金 李虎 桂木政 陈飞 RAO Yangli;ZHANG Yujin;LI Hu;GUI Muzheng;CHEN Fei(The Third Institute of Photogrammetry and Remote Sensing,Ministry of Natural Resources,Chengdu,Sichuan 610100,China;SuperMap Software Co.,Ltd.,Beijing 100015,China)

机构地区：[1]自然资源部第三航测遥感院,四川成都610100 [2]北京超图软件股份有限公司,北京100015

出　　处：《测绘技术装备》2022年第4期43-48,共6页Geomatics Technology and Equipment

基　　金：典型自然资源要素遥感影像样本库建设方法研究(项目编号:Y2020ZL07)。

摘　　要：为探索资源三号03星影像立体测图精度及其新增的激光测高数据能否有助于提高无地面控制的测图精度,本文研究基于资源三号03星立体影像,开展了不同地形类别数字表面模型(Dig⁃ital Surface Model,DSM)、数字高程模型(Digital Elevation Model,DEM)、数字正射影像(Digital Or⁃thophoto Map,DOM)、数字线划图(Digital Line Graphic,DLG)(简称“4D”)产品精度评价及其与资源三号01星、02星影像的对比分析,以及03星影像复合RPC立体模型的精度评价。结果表明,基于资源三号03星影像测制的1∶50000“4D”产品的平面位置和高程精度均满足1∶50000丘陵地、山地、高山地精度要求;DSM、DEM、DOM(简称“3D”)产品精度与02星影像相差不大,但优于01星影像。利用加入激光测高数据复合RPC文件恢复的立体模型精度明显高于利用原始RPC自由网平差参数恢复的立体模型精度。In order to seek whether the stereoscopic mapping accuracy of images from 03 satellite of ZY-3 and the newly added laser altimetry data can help improve the mapping accuracy without ground control,the accuracy evaluation of DSM,DEM,DOM,and DLG(“4D”for short)products of different terrain categories,the comparison analysis between the 4D products and the images from 01 and 02 satellites of ZY-3,as well as the accuracy evaluation of the composite RPC stereo model of the 3D images from 03 satellite of ZY-3 have been done based on the 3D images from 03 satellite of ZY-3 in this paper.The results show that both the horizontal and vertical accuracy of the 1∶50000“4D”products based on images from 03 satellite of ZY-3 all meet the accuracy requirements of 1∶50000 in hills,mountains,and high mountains.The accuracy of DSM,DEM,DOM(“3D”for short)is not much different from those of 02 satellite images of the ZY-3,but better than those of 01 satellite images of the ZY-3;The accuracy of the stereo model restored by adding laser altimetry data to the composite RPC file is significantly higher than that of the stereo model restored by using the original RPC free network adjustment parameters.

关 键 词：资源三号03星 “4D”产品 测图精度 激光测高数据 

分 类 号：P283.4[天文地球—地图制图学与地理信息工程]