细化指纹图像中伪特征点的去除算法  

An Algorithm for Minutiae Extraction in Fingerprint Image

作　　者：卫丽芬[1] 李仰军[1] 姚学林[2] 王雷[2] 

机构地区：[1]中北大学信息与通信工程学院,山西太原030051 [2]中国人民解放军061基地军事代表室,贵州贵阳550009

出　　处：《机械工程与自动化》2010年第2期56-57,60,共3页Mechanical Engineering & Automation

摘　　要：指纹图像经预处理后,由于各种原因,会产生数以百计的特征。为了图像匹配的精确和快速,直接在细化指纹图像上提取原始细节特征点集合,并针对各种噪声产生的伪特征点采用不同算法进行滤除。通过实验,证明了该后处理过程在去除指纹图像伪特征方面具有良好的效果。After pre-processing of the fingerprint image, hundreds of characteristics will be produced for varieties of reasons. In order to realize accurate and quick image matching, we extracted the feature point sets of the original fingerprints directly from the thinned images. Then different methods for pruning of details on the subdivided fingerprint point are proposed. The experiments prove that the post-processing process has good effects for eliminating pseudo-characteristics of fingerprint image.

关 键 词：指纹识别 细节特征 特征抽取 伪特征点 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]