指纹图像预处理和特征提取  

Preprocessing and Minutiae Extraction of Fingerprint Image

作　　者：刘灵丽[1] 李丽娟[1] 

机构地区：[1]湖南大学计算机与通信学院

出　　处：《计算机工程》2006年第16期190-192,共3页Computer Engineering

基　　金：国家自然科学基金资助项目(60373062);教育部科研基金资助重点项目(03092);湖南省杰出中青年基金资助项目(02JJYB012)

摘　　要：根据指纹的固有规律,提出了一套较完整的指纹图像预处理和特征提取算法。改进了指纹脊线频率求取算法和二值图像去孔噪声算法,并提出了一种新的滤除指纹伪特征点的方法。通过对上百幅不同质量的指纹图像进行测试,获得了较好的效果。A set algorithm for preprocessing and minutiae extraction of fingerprint image is proposed in this paper. It is based on the analysis of the inherent feature of fingerprint. The method to get ridge frequency and the method to eliminate holes of binary image are proposed. Besides, a new approach to eliminate false minutiae of thinned fingerprint image is presented. These proposed algorithms have been widely tested and checked for hundreds of fingerprint images and excellent results are obtained.

关 键 词：指纹 预处理 特征提取 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]