CBERS-2CCD遥感图像辐射校正技术  

Radiation Correction for CBERS-2 CCD Remote Sensing Images

作　　者：王宇舟[1] 刘爱平[1] 陶孙杰[1] 

机构地区：[1]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2008年第4期44-48,共5页Telecommunication Engineering

摘　　要：在对CBERS-2卫星CCD遥感图像辐射校正技术进行深入研究的基础上,给出了图像的0级预处理、传感器标定、大气辐射校正、照度校正等技术方法。在0级图像预处理方面,提出了利用测试数据来解决拼接区的辐射失真问题,并提出一种新的条纹检测技术;传感器的标校方面,讨论了底电平和非均匀性的消除方法;大气辐射校正采用回归分析法和直方图法;给出了太阳高度和地形坡度的照度校正方法与技术。On the basis of deeply studying on CCD remote sensing image radiation correction technology of CBERS -2 satellite, the technology of level 0 image pre -processing, sensor calibration, atmosphere radiation correction, solar irradiation correction are presented. During the level 0 image pre - processing, a method of using CCD testing data to solve the radiation distortion in collage fields is proposed, and a new method of stripes detection technology is given. In the section of sensor calibration, the methods of reducing floor level and non - average features are discussed. Regression analysis and histogram are adopted during atmosphere radiation correction. The solar irradiation correction technology of solar height and terrain gradient is also provided.

关 键 词：CBERS资源卫星 遥感图像 辐射校正 0级图像预处理 传感器标定 大气校正 照度校正 

分 类 号：TN911.73[电子电信—通信与信息系统] TP75[电子电信—信息与通信工程]