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基于复合方向特征的快速指纹验证

DOI: 10.11834/jig.2005010234

Keywords: 指纹验证,细节特征点,复合方向特征

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Abstract:

由于对拒真率、认假率、比对时间、模板占用空间等指标都有较严格的要求,指纹验证是一项复杂且具有挑战性的任务。提出了复合方向特征这一新颖的特征用于指纹验证,该特征由脊线旋转方向和4个相对方向组成。指纹验证由两个过程组成:基于复合方向特征的细节点对搜索,它加速了指纹校准;基于复合方向特征的匹配分值计算,它使匹配的鲁棒性增强。用国际指纹验证大赛指纹库中的测试样本进行了测试,实验结果表明,该方法能够实现可靠、快速的指纹验证。

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