用于身份识别的虹膜图像预处理方法研究  

Study on Method of Iris Image Preprocessing for Identification Recognition

作　　者：王美华[1] 范科峰[2] 王占武[1] 

机构地区：[1]北京信息工程学院,北京100101 [2]西安电子科技大学信息处理研究所

出　　处：《计算机应用研究》2007年第7期303-305,共3页Application Research of Computers

基　　金：北京市教委科技发展计划资助项目(KM200610772008);西安电子科技大学研究生创新基金资助课题(创05001)

摘　　要：跟踪研究了虹膜图像的预处理方法;针对现有算法的局限性作了改进,提出了基于小波变换的虹膜图像消噪的方法,并针对虹膜图像的特点,提出了新的虹膜定位检测算子,使虹膜定位更加迅速、精确;最后进行了虹膜图像的增强和校准处理。实验结果表明,该方法能精确地检测到虹膜,提高了虹膜识别的速度和精确性,并有良好的稳健性。Iris image preprocessing algorithms were studied and had been made betterments according to their limitations and iris features. A new iris image denoising and localization algorithm were presented, which showed high speed and veracity. Finally, iris enhancement and adjustment were given. The results show that the algorithm not only is good to the speed and veracity of iris location but also robust.

关 键 词：虹膜识别 预处理 小波变换 图像消噪 虹膜定位 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]