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| 有理函数模型在光学卫星影像几何纠正中的应用 | |
| 引用本文： | 张过,李扬,祝小勇,唐新明.有理函数模型在光学卫星影像几何纠正中的应用[J].航天返回与遥感,2010,31(4):51-57. |
| 作者姓名： | 张过 李扬 祝小勇 唐新明 |
| 作者单位： | 1. 武汉大学测绘遥感信息工程国家重点实验室,武汉,430079;国家测绘局卫星测绘应用中心,北京,100830 2. 湖北省环境科学研究院环境规划研究所,武汉,430072 3. 国家测绘局卫星测绘应用中心,北京,100830 |
| 基金项目： | 国家自然科学基金，国家863重点项目 |
| 摘 要： | 分析了中国光学卫星影像的严密成像几何模型,并采用有理函数模型(RFM)拟合严密成像几何模型,分别对"资源二号"两景影像(平原与山区)和"遥感二号"一景影像进行了几何纠正试验。试验中,参考相应地区1∶10 000数字正射影像(DOM)选取一定数量的控制点用于精化有理函数模型参数,结合相应地区1∶10 000数字高程模型(DEM)对影像进行正射纠正,纠正精度反映了RFM拟合严密成像几何模型的正确性,但同时也反应了中国光学卫星与法国、美国光学卫星在内检校工作上的差距。 |
| 关 键 词： | 严密成像几何 有理函数模型 几何纠正 光学卫星 |
Application of RFM in Geometric Rectification of Optical Satellite Image |
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| Zhang Guo,Li Yang,Zhu Xiaoyong,Tang Xinming.Application of RFM in Geometric Rectification of Optical Satellite Image[J].Spacecraft Recovery & Remote Sensing,2010,31(4):51-57. | |
| Authors: | Zhang Guo Li Yang Zhu Xiaoyong Tang Xinming |
| Institution: | 1 State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan 430074,China)(2 Hubei Academy of Environmental Sciences,Wuhan 430072,China)(3 Satellite of Surveying and Mapping Application Center of State Bureau of Surveying and Mapping,Beijing 100830,China) |
| Abstract: | In this paper,the strict imaging model of domestic optical satellite image is analyzed.RFM is utilized to fit strict imaging model.Some experiments of geometric rectification based on ZY-2 images and YG-2 images are conducted.A few GCPs are selected according to the 1∶10 000 DOM of the corresponding area in order to improve the accuracy of RFM.Then ortho-rectification is implemented relying on the 1∶10 000 DEM of the corresponding area.The accuracy of rectified images shows the correctness of using RFM to fit strict imaging model and the gap on inner-calibration between overseas optical satellites and domestic optical satellites. |
| Keywords: | Rigorous sensor model Rational function model Geometric rectification Optical satellite |
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