基于相位相关的指纹序列图像配准新算法

摘要

Based on the continuity of finger movement, by means of the comprehensive algorithm of phase correlation and gray correlation, using the matching modules of self-adaptive size, the problem of registering two images was turned into the problem of registering two modules, and the difficulty was overcome effectively. It was proved on the basis of the test results that the novel algorithm was simple and practical, and could be applied to the portable fingerprint authentication system based on DSP.%根据手指滑动的连续性,综合运用基于相位相关与灰度相关的算法,采用自适应调节大小的匹配模块,把两幅图像配准问题转变成两个模块配准问题,有效解决了重叠率低的难题.测试结果表明:新算法简便实用,可应用在基于DSP的便携式指纹识别系统中.