通用指纹图像处理分析平台的研发与应用  

Platform development and primary application for images processing and analysis of fingerprint

作　　者：汤敏[1] 

机构地区：[1]南通大学电子信息学院,江苏南通226007

出　　处：《计算机工程与设计》2010年第4期791-794,共4页Computer Engineering and Design

基　　金：江苏省普通高校自然科学基础研究基金项目(08KJD520021);南通市科技项目应用研究计划基金项目(K2008036);南通大学2008年度博士科研启动基金项目(08B15)

摘　　要：对通用指纹图像处理分析中的关键算法和平台研发技术进行了研究,并给出初步应用结果。针对模糊指纹图像,通过傅立叶变换从空域转换到频域,进行带通滤波和方向滤波,从而增强图像、突出细节。通过指纹识别算法获取指纹特征数据,根据一定的原则删除伪细节点、存储终止点和分叉点的相关信息。以特征数据为依据,通过计算机进行分类和比较,把指纹划分为某一类型,或在小型指纹库中计算指纹间的相似度,得到指纹匹配结果。实验结果表明,该算法简单实用,效果良好,为自动指纹识别系统的研发打下基础。Several critical algorithms and platform development technologies are discussed for images processing and analysis of fingerprint,with primary application results demonstrated.Blurred fingerprint images are transformed from time-domain to frequency-domain though Fourier transform to realize image enhancement using band-pass filter and orientation filter.Minutiae points,especially ending and bifurcation points,are extracted and stored after false minutiae points deleted according to scheduled principles.Based on the information of above minutiae points,fingerprint classification and matching are carried out according to comparability.Experimental results demonstrate that the algorithms are effective to achieve reasonable results,and built the foundations for automatic fingerprint identification system.

关 键 词：指纹 图像增强 细节特征提取 生物识别技术 图像处理 图像分析 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]