高分二号卫星影像几何校正方法研究  

Research on Geometric Correction Method of GF-2 Image

作　　者：杨国东[1] 国策 张旭晴[1] YANG Guodong;GUO Ce;ZHANG Xuqing(College of Geo-explore Science and Technology,Jilin University,Changchun 130026,China)

机构地区：[1]吉林大学地球探测科学与技术学院,吉林长春130026

出　　处：《测绘与空间地理信息》2018年第10期15-17,共3页Geomatics & Spatial Information Technology

摘　　要：在对影响几何校正精度的因素(校正模型、控制点分布、重采样方法等)进行分析的基础上,本文对吉林省洮南地区高分二号影像分别采用有理函数、多项式、RST、局部三角网4种模型进行校正并对比其精度。同时,基于有理函数模型,分别采用最邻近像元法、双线性内插法、三次卷积法进行重采样、比较不同重采样方法对几何校正精度的影响。This paper analyzes the factors that affect the accuracy of geometric correction （correction model, control point distribution,resampling method, etc.）. The GF-2 Image in the Taonan of Jilin Province is calibrated and compared with the Rational FunctionModel, Polynomial Model, RST Model and Delaunay Triangulation Model. At the same time, nearest neighbor interpolation, bilinearinterpolation and cubic convolution interpolation are used to resample the Rational Function Model respectively. The effects of differentresampling methods on the geometric correction precision are compared.

关 键 词：几何校正 地面控制点 几何校正模型 重采样方法 高分二号 

分 类 号：P237[天文地球—摄影测量与遥感]