基于地形无关控制方案的有理函数建模方法研究

Study on Rational Function Model Method Based on Control Scheme Independent of Terrain

本文分析了有理函数模型用于遥感影像的三维重建过程，并针对地形无关的控制方案中影响有理函数模型定向精度的两个重要因素：控制点格网大小和控制点层数，利用SPOT卫星影像通过实验分析，给出了它们对有理函数模型定向精度的影响规律。实验结果表明：设置合理的控制点格网大小和控制点层数，可以确保有理函数模型对严格成像模型的高精度拟合。

The 3D reconstruction process of remote sensing imagery with rational function model （RFM） is analyzed in this paper. Since control points grid size and layers are two important factors that have an impact on the RFM in control scheme independent of terrain, SPOT satellite imagery are used in experiments to analyze the impact. Results showed that properly - set control points grid size and layers would achieve a high - accuracy fitting between RFM and vigorous imaging model.