基于IDL的资源一号02C星HR影像RFM几何校正  

RFM geometric correction of HR remote sensing images of ZY-1 02C satellite using IDL

作　　者：钱志奇[1] 朱晓雯[1] 房莹莹[1] 李文林[1] 陆殿梅[1] 

机构地区：[1]江苏省地质勘查技术院,江苏南京210049

出　　处：《地质学刊》2015年第1期55-60,共6页Journal of Geology

基　　金：中国地质调查局项目"江苏重点矿集区矿产资源开发遥感调查与监测"(1212011220070)

摘　　要：资源一号(ZY-1)02C卫星作为我国高分辨率遥感数据卫星之一,正广泛应用于各个领域。该卫星数据采用国际上广泛使用的有理函数模型(Rational Function Model,RFM),并提供有理函数多项式系数(Rational Polynomial Coefficients,RPC)。针对ZY-1 02C星1级辐射校正数据格式特点,在充分了解数据文件结构基础上,使用IDL语言进行开发,通过RFM反演其RPC,实现HR影像的几何校正等预处理。实验结果表明,程序执行快速稳定,精度可靠,影像镶嵌效果好,可以有效使用RFM实现大数据量影像的系统几何校正,避免重复操作中间数据的繁琐步骤,提高工作效率,具有实用价值。The ZY-1 02 C satellite data are widely used in various fields as one of the high-resolution satellite remote sensing data. The satellite data utilized the internationally widely used rational function model（ RFM）,providing the rational function coefficients（ RPC）. This study fully researched the first level radiometric calibration data format features of ZY-1 02 C satellite images and the structure of the data file,and derived the RPC coefficients using IDL language via the RFM model,which achieves the geometric correction of HR images. The results show that the program executes fast and stably with reliable accuracy and a better mosaic effect. The RFM model can be used effectively to achieve geometric correction of a large amount of image data,which avoids the reduplicative and fussy intermediate step operations,and is of great practical value for improving work efficiency.

关 键 词：IDL ZY-1 02C卫星 RFM RPC 几何校正 

分 类 号：P237[天文地球—摄影测量与遥感] TP751.1[天文地球—测绘科学与技术]