Hyperion高光谱影像的分析与处理

Hyperion Hyperspectral Image: Analysis and Process

EO-1 Hyperion是新型地球观测卫星,也是一颗实验性的高光谱星载卫星.Hyperion影像具有高光谱分辨率的特点,同时该传感器在波段的辐射定标参数、影像的坏线和条带、以及光谱的Smile效应等处理方面有待改进.针对黑河上游祁连山区的Hyperion影像,进行了DN值分析、DN值转换辐亮度值、影像条带去除和坏线替换、光谱Smile效应校正、以及经MODTRAN辐射传输的大气订正等处理,获得了高光谱分辨率的雪反射率的反演图像,为研究区积雪面积的提取、雪粒径和雪反照率的反演等后续工作提供了基础图像.

EO-1 Hyperion is a new earth observation satellite developed to relay Landsat 7,and it is also an experimental hyperspectral satellite.Hyperion image has hyperspectral resolution characteristics.That is to say,it has 242 bands.And the average of the FWHM(Full Width at Half Maximum) wavelength is up to 10 nm.And hundreds of effective bands can fully show the spectrum curve for each pixel,then one can discriminate among the surface features according to the spectral difference,owing to surface features has di...