摘要
针对我国发布的资源三号卫星数据,本文提出了一种基于RPC像方改正模型的卫星几何纠正方法。主要是在传统的RPC模型基础上加入了基于像方空间的仿射变化模型,并利用地面控制点进行联合平差求解变化参数,修正RPC参数提高定位精度。利用上海地区的资三卫星影像进行纠正实验,验证了该模型的可行性,改化后模型的纠正精度相比传统的RPC纠正得到大幅提高,能满足1:10 000正射影像精度要求。
A methods based on RPC-image space Correction Model as the party＇s domestic satellite correct geometric correction was proposed with ZY-3 satellite data released by China, ground control points were used to solve the combined adjustment parameter and improved the positioning accuracy. The method was proved with images in the Shanghai area by ZY-3 satellite data and was feasibility, it showed that correcting accuracy can be improved greatly compared to traditional RPC correction and can meet the accuracy of 1：10 000 orthophotoes.
出处
《地理信息世界》
2014年第6期43-47,共5页
Geomatics World
关键词
卫星影像
RPC
仿射变换
几何纠正
satellite imagery
RPC
affine transformation
geometric correction
