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核Fisher判别分析在多聚焦图像融合中的应用

DOI: 10.11834/jig.20110306

Keywords: 多聚焦图像,图像融合,核Fisher判别分析,冗余小波变换

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Abstract:

提出一种基于核Fisher判别分析与图像块分割的多聚焦图像融合方法。该方法首先将源图像进行块分割,计算反映图像块聚焦程度的清晰度特征;再将源图像的部分区域作为训练样本,获得训练后的核Fisher判别分析参数;然后利用已知的核Fisher判别分析获得初步融合图像;最后对位于源图像清晰与模糊区域交界处的源图像块利用冗余小波变换进行处理后,得到最终融合图像。实验结果表明,该方法的图像融合效果优于常用图像融合方法,可在有效提高图像融合质量与减少计算量之间获得较好的折衷。

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