指纹识别系统性能研究和提高  

The Research and Improvement on Performance of the Fingerprint Verification System

作　　者：唐群元[1] 陶进绪[1] 

机构地区：[1]中国科技大学生物医学超声实验室,合肥230027

出　　处：《计算机工程与应用》2005年第25期61-64,共4页Computer Engineering and Applications

摘　　要：指纹图像增强以及快速准确的匹配一直是指纹识别系统需要解决的两大重点。提出了一种优化后的Gabor滤波来增强指纹纹线并有效消除噪声的方法。同时在指纹识别环节上,提出用不变矩矢量来表征指纹特征信息并以此来进行数据库入库登记的新方法,给出了一种不变矩的具体构造方法,大大提高了指纹识别的算法效率和准确率。How to enhance and match fingerprint images both quickly and effectively are two important subjects in the fingerprint identification system.In this paper,a method is presented to enhance fingerprint ridge and to elimiate noises effectively with optimal Gabor filters.In addition,we have used the moment invariant vectors to express the characteristic information of fingerprints and eroll datas in database.We have proposed a method,which is used to construct moment invariant vectors and by which the efficiencies of the fingerprint identification algorithm and the rate of the precision can be increased efficiently.

关 键 词：指纹图像增强 指纹识别 GABOR滤波器 频率滤波 不变矩 特征串 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]