The study on Atmospheric Correction of TM Image Data in GuangZhou
To extract accurately quantitative information from remote sensing image,Atmospheric Correction is a necessary step.The quantitative analysis of Atmospheric Correction is still one among the important issues in application of remote sensing images.Based on the characteristics of the MODTRAN(transfer model) and the dark-object method,they are combined to remove atmospheric effects of remote sensing image in this study.In order to improve the speed of Atmospheric Correction by MODTRAN model,the dark-object method is used to acquire Path Radiance,which is one of main parameters in MODTRAN model.The new method is applied to TM image in the working area of GuangZhou.The result of the above study shows that the atmospheric correction model combining MODTRAN with the dark-object method appears to be a very hopeful approach.Compared with the MODTRAN model,the new model advances surface-atmospheric coupled efficiency.But contrasted with the dark-object method,the precision of atmospheric correction is advanced.
Atmospheric Correction TM MODTRAN model Dark-object method
Jianbo Xu Zhenhua Liu WenYa
Information of College,South China Agricultural University,GuangZhou City,GuangDong Province,P.R .China 510642
国际会议
第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)
广州
英文
2008-06-28(万方平台首次上网日期,不代表论文的发表时间)