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本文探索利用高分辨率卫星GeoEye-1卫星获取数字高程模型辅助重力改正的方法。本文介绍了有理函数模型提取立体像对中高程的技术流程,通过与地面实测控制点的对比,分析在有控制点和无控制点情况下有理函数模型提取结果的精度。研究表明有理函数模型正逐渐成为高分辨率卫星提取地形地貌的重要方法。
This article explores the use of high-resolution satellite GeoEye-1 satellite to obtain digital elevation model aided gravity correction method. In this paper, the technical process of extracting the elevation of stereo image pair from rational function model is introduced. By comparing with the measured control points on the ground, the accuracy of the result of rational function model analysis with and without control points is analyzed. The research shows that the rational function model is becoming an important method of high-resolution satellite extraction of topography.