HSI高光谱数据的FLAASH大气校正与评价  被引量:5

Atmospheric Correction and Evaluation for HSI Hyperspectral Image Based on FLAASH Model

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作  者:刘玉琴[1] 沙晋明[1] 徐赛萍[1] 祝坤子[1] 

机构地区:[1]福建师范大学地理科学学院,福建福州350007

出  处:《福建师范大学学报(自然科学版)》2013年第5期30-35,共6页Journal of Fujian Normal University:Natural Science Edition

基  金:欧盟第七框架项目(247608)

摘  要:针对福州闽侯西部地区的HSI高光谱数据,进行影像条纹噪声去除,并基于MODTRAN辐射传输模型对HSI数据进行大气校正得到地表真实反射率.通过大气校正前后的3类典型地物的反射率的对比,大气校正前后的植被反射率和光谱库中标准反射率的对比,证明了FLAASH模型对HSI数据进行大气校正的有效性.To deal with the HSI image of the western region of Minhou County in Fuzhou and to obtain the real land surface radiation information, it introduced the entire procedure for data pre- processing in details, including the stripe noise elimination and atmospheric correction based on MODTRAN radiation transfer model. On one hand, the spectral curves of three typical surface fea- tures before and after atmospheric correction were compared, on the other hand, it compared the spectral curves of vegetation reflectance before and after atmospheric correction with the standard re- flectance in spectral libraries. The result indicated the validity of carrying out atmospheric correction of the HSI imagery data with FLAASH model.

关 键 词:噪声去除 HSI 大气校正 FLAASH模型 

分 类 号:TP79[自动化与计算机技术—检测技术与自动化装置]

 

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