高分辨率卫星影像几何精度真实性检验方法  

Methods for Geometric Accuracy Validation of High-Resolution Satellite Imagery

作　　者：许妙忠[1] 尹粟[1] 黄小波[2] 

机构地区：[1]武汉大学测绘遥感信息工程国家重点实验室,湖北武汉430079 [2]信息工程大学测绘学院,河南郑州450052

出　　处：《测绘科学技术学报》2012年第4期244-248,共5页Journal of Geomatics Science and Technology

基　　金：国家973计划项目(2012CB719900)

摘　　要：以日本ALOS卫星为例,分析了线阵推扫式卫星影像成像特征,从理论上阐述利用严密成像几何模型建立卫星影像像点与物点之间的成像几何关系,并利用光束法区域网平差技术对影像几何精度进行真实性检验的方法。在实验部分,基于中国嵩山遥感几何定标场的参考数据,对ALOS卫星影像的几何精度进行了验证,获取了它的有控和无控的定位精度,并用解算的外方位元素建立立体模型,检测不同地形生成DEM精度。The imaging characteristics of linear array push-broom satellite imagery were analyzed for ALOS satellite, and the relationship between camera and ground coordinates for fitting the rigorous sensor models were analyzed in theory. Then the bundle adjustment was applied to observe the accuracy results for geometric validation purposes. In the experimental verification part of this paper, the ALOS images acquired over domestic established testfield were used to evaluate the geometric accuracy with ground control points and without control on the model. The generation of DEMs from stereo models was tuned towards the calculating exterior orientation with different terrain types.

关 键 词：卫星影像 几何精度 成像模型 真实性检验 控制点 

分 类 号：P237[天文地球—摄影测量与遥感]