| 基于黑暗像元和大气透过率的遥感图像校正 |
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| 引用本文： | 苏礼坤,陈锋,罗莉.基于黑暗像元和大气透过率的遥感图像校正[J].成都信息工程学院学报,2009,24(3). |
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| 作者姓名： | 苏礼坤 陈锋 罗莉 |
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| 作者单位： | 成都信息工程学院光电技术学院,四川,成都,610225 |
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| 摘 要： | 介绍了黑暗像元法光学遥感图像大气校正的基本原理,并根据典型大气条件考虑了光谱的大气透过率分布,设计了一定大气条件下的自动光学遥感图像校正算法.通过对具体的图像模式进行的校正处理效果比较,在图像本身比较模糊的情况下,校正效果较好,而对于图像本身比较清晰的情况下,校正效果不明显,但色彩得到改进并更接近原始色彩,计算表明,在光学遥感图像校正要求不是特别高或者大气条件比较均匀的情况下,是一种仅靠图像信息本身即可进行大气校正的简单方便的方法,具有一定的实用价值.
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| 关 键 词： | 黑暗像元 程辐射 大气透过率 光学遥感图像 |
Correction of remote-sensing image based on dark-object methods and atmospheric transmittance |
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| SU Li-kun,CHENG Feng,LUO Li.Correction of remote-sensing image based on dark-object methods and atmospheric transmittance[J].Journal of Chengdu University of Information Technology,2009,24(3). |
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| Authors: | SU Li-kun CHENG Feng LUO Li |
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| Institution: | School of Optoelectronics;CUIT;Chengdu 610225;China |
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| Abstract: | The basic principle of the dark-object methods which correct the atmospheric influence on the remote-sensing optical image is introduced and a calibration algorithm of the automatic optical remote-sensing image by considering the typical atmospheric transmittance distribution of the optical spectrum is designed.By comparing the image quality before and after the correction it shows that if the original image is clear the correction is very good and the correction is not very obvious though the original imag... |
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| Keywords: | dark-object methods path radiance atmospheric transmittance remote-sensing optical image |
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