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基于光谱融合的掌纹精细纹路提取

, PP. 1274-1280

Keywords: 计算机应用,精细纹路特征,非下采样Contourlet变换,多光谱掌纹

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Abstract:

针对掌纹中浅而细小的精细纹路,提出一种光谱融合的非下采样Contourlet变换(NSCT)与数学形态学细化相结合的掌纹线特征提取方法。该方法先对不同光谱下的掌纹图像分别进行NSCT分解,根据精细纹路特点处理子带系数矩阵,结合光谱特点融合各系数,逆变换后进行形态学细化得到掌纹精细纹路特征。使用自行采集的多光谱掌纹图像实验表明,本文方法提取出的浅而细小的掌纹精细纹路更清晰丰富。

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