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可见光云图日食阴影订正方法的改进和应用

DOI: 10.11834/jig.20070905

Keywords: 日食,订正,可见光云图,灰度共生矩阵,纹理特征量

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Abstract:

日食发生时,卫星可见光云图上受其影响区域会出现明显的阴影,使该区域的信息无法得到分析和利用。提出并应用改进的几何模型法对可见光云图日食阴影做订正处理,并计算出指定区域处理前、后的灰度共生矩阵;然后抽取云图纹理特征量对订正效果做进一步分析比较,结果表明,改进后的几何模型法基本消除了日食对云图的影响。

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