“高分一号”卫星数据几何校正研究

发布时间：2018-06-25 22:21

本文选题：“高分一号”卫星 + 几何校正　；参考：《遥感技术与应用》2017年01期

【摘要】：运用野外采集的GPS数据研究几何校正模型和控制点数量对4景"高分一号"高分辨率相机数据的几何校正精度影响,此项研究有利于合理使用"高分一号"卫星数据,为国产卫星数据的应用和推广起到一定的促进作用。分别运用多项式模型和有理函数模型对"高分一号"数据进行几何校正,运用事先布置好的检查点与校正后影像上的同名地物点进行精度分析,实验表明运用有理函数模型对"高分一号"数据进行几何校正会取得较好精度。分别运用25、20、15、10、5、1个和无控制点对4景"高分一号"数据进行有理函数模型的几何校正。综合考虑人力、耗时、精度等因素后得出结论:如果影像中山区不多时,运用5个控制点进行校正可以取得较好的效果,当山区比较密集时,可以适当增加控制点数量到10个。
[Abstract]:Using GPS data collected in the field to study the effect of geometric correction model and the number of control points on the geometric correction accuracy of high-resolution camera data of "Gao Fen No. 1" in four scenes, this study is conducive to the rational use of "Gao Fen 1" satellite data. It will promote the application and popularization of domestic satellite data. The polynomial model and rational function model are used for geometric correction of "Gao Fen No. 1" data, and the precision analysis is carried out by using pre-arranged checkpoints and points of the same name on the corrected image. The experimental results show that the geometric correction of "Gao Fen 1" data by rational function model can achieve better accuracy. The rational function model of 4 scenes "Gao Fen 1" is calibrated by using 25 / 20 / 15 / 10 / 10 / 5, 1 / 1 and no control points respectively for the rational function model of the 4 scenes'"Gao Fen 1" data. After considering the factors of manpower, time consuming and precision, it is concluded that if there are not many mountain areas in the image, good results can be obtained by using 5 control points to correct them, and when the mountains are dense, the number of control points can be increased to 10.
【作者单位】：中国地质大学(北京)土地科学技术学院;中国地质大学(北京)地球科学与资源学院;
【基金】：中国地质调查局地质调查项目“全国矿产资源开发环境遥感监测”(121201203000160009)资助
【分类号】：V557;TP751

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