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一种新的基于主分量变换与小波变换的图像融合方法

DOI: 10.11834/jig.200507174

Keywords: 图像融合,小波变换,主分量变换,IHS变换

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Abstract:

为了更好地进行不同分辨率图像的融合,提出了一种基于主分量变换与小波变换结合的多光谱图像与高分辨率图像融合方法。该新方法首先对多光谱图像进行主分量变换;然后分别对其第1主分量与高分辨率图像进行小波变换,并采用成像强度对比法有效地将经小波分解的高分辨率图像的低频分量信息融合到经小波分解的多光谱图像的第1主分量的低频分量中;最后,通过将小波融合结果作为多光谱图像的第1主分量再做逆主分量变换来得到最终的融合图像。实验结果分析表明,该新方法使融合图像在较好地保留光谱信息的同时,空间细节信息也得到了增强,比典型的IHS变换、主分量变换及小波变换融合方法具有更好的融合效果。

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