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基于稳定区域的形变指纹匹配算法

DOI: 10.11834/jig.20100819

Keywords: 指纹匹配,非线性形变,稳定区域

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Abstract:

针对指纹匹配中的非线性形变问题,首次提出了稳定区域的概念,并给出了一种新颖的基于指纹稳定区域的形变指纹匹配算法。通过稳定区域这一概念,巧妙地把指纹匹配问题转化为寻找两幅指纹中对应稳定区域的问题。该算法通过稳定区域的构造、确认和扩张3个步骤,实现了从点到面再到更大区域,从线性形变区域到非线性形变区域的匹配策略。该算法在国际指纹识别竞赛FVC2004的数据库上进行了测试,实验结果表明,该算法有着良好的匹配性能,并有较强的处理非线性形变的能力。

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