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测绘学报  2014 

高光谱影像稀疏解混的空间同质分析法

, PP. 607-612

Keywords: 高光谱影像,光谱分解,稀疏回归,同质分析

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Abstract:

本文针对高光谱遥感影像端元丰度的稀疏性和空间分布平滑性,提出一种基于空间同质分析的稀疏解混算法。该算法首先对高光谱影像进行空间同质分析来提取同质指数,然后根据同质指数对稀疏回归解混模型中的空间正则项赋予不同权重,使其能更好地反映高光谱影像端元丰度分布的空间复杂性,进而实现对高光谱混合像元的有效分解。模拟数据和真实数据的实验分析表明本文提出的算法能更好地保持结果的稀疏性和丰度空间分布的平滑性并且具有一定的抗噪性,提高了整体的解混精度。

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