一种新的高光谱图像中太阳耀斑去除方法

Guangxue Xuebao/Acta Optica Sinica(2008)

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Abstract
太阳耀斑掩盖了水体的真实物理特性,严重干扰了水下特征的获取.根据被耀斑污染的像素和邻近未污染像素问的辐射差值,获得大气组分的吸收特征.并调节大气辐射传输模型中的模型参量,进而得到大气透射率.分析了影响耀斑污染程度的主要因素,依据近红外波段离水辐亮度近似为零,求出水体受耀斑污染程度的空间分布,据此进行耀斑去除,得到未被耀斑污染的图像.结果表明,应用该方法提取离水辐亮度,去除耀斑的效果较好.
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Key words
Atmospheric transmissivity,Glint removal,Remote sensing,Water segmentation,Water-leaving radiance
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