摘要
该文在基于点模式的指纹匹配算法基础上将指纹匹配分成粗细两个等级依次进行。在第一级匹配中,通过统计ROI(Region of Interest)中端点和分叉点的个数对指纹进行粗匹配,大大节省了匹配算法的运算时间。在第二级匹配中,利用基于可变限界盒的指纹匹配方法,在一定程度上解决了指纹非线性形变的问题。
In order to save the matching time,the fingerprint has been matched by two steps based on minutiae.In the first step,a ROI in the fingerprint has been marked and then the number of ending and bifurcation in ROI has been calculated separately to achieve cursory match.In the second step,the variable sized boundary box which have more robust on non-linear transfigure has been used to realize the accurate match.
出处
《电脑知识与技术（过刊）》
2009年第7X期5517-5519,共3页
Computer Knowledge and Technology
基金
天津科技大学科学研究基金资助项目(20080227)
关键词
指纹匹配
点模式
两级匹配
可变限界盒
fingerprint matching
minutiae,two-step matching,Variable Bounding Box
