一种改进的基于细节点的脊线追踪算法  

An improved fingerprint ridge line tracing algorithm based on minutiae

作　　者：李敏敏[1] 

机构地区：[1]江苏科技大学,江苏镇江212003

出　　处：《电子设计工程》2013年第17期128-130,共3页Electronic Design Engineering

基　　金：江苏省基础研究计划自然科学基金(BK2009623)

摘　　要：从点线关系来说,指纹脊线是由很多个像素点按照一定的顺序依次排列形成的线状结构。由此看来指纹脊线负载了指纹的细节特征点、普通点以及形状信息,可知指纹脊线含有大量丰富的指纹信息,几乎构成了指纹的全部特征,因此将脊线信息用于指纹识别可以提高其准确性。脊线追踪是获得指纹脊线信息的前提,本文对一种基于指纹细节端点和叉点的脊线追踪算法进行了改进,实验结果表明,改进后的脊线追踪算法对指纹细化图具有非常理想的脊线追踪效果。According to the relationship between points and lines,fingerprint ridge is a linear structure of multiple pixels.As a result,fingerprint ridge contains the information of detailed characteristic points,general points and shapes.In other words,fingerprint ridge contains almost all the characteristics of fingerprint,so using the ridge line information in fingerprint recognition can improve its accuracy.Tracing of fingerprint ridge is the premise to get its information.This paper improves an algorithm of ridge line tracing based on end and fork.According to the experimental results,the improved fingerprint ridge tracing algorithm has ideal effect.

关 键 词：指纹脊线 指纹信息 脊线追踪 指纹细化 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]