二维正交Log-Gabor滤波器结合混沌加密的掌纹认证方法  

Palmprint authentication approach base on 2D orthogonal Log-Gabor filter and chaotic encryption

作　　者：焦阳[1] 赵嵩[2] JIAO Yang;ZHAO Song(Henan University of Animal Husbandry and Economy, Zhengzhou 450052 , Henan, China;Zhengzhou Institute of Aeronautical Industry Management,Zhengzhou 450015 , Henan, China)

机构地区：[1]河南牧业经济学院,河南郑州450052 [2]郑州航空工业管理学院,河南郑州450015

出　　处：《河南理工大学学报（自然科学版）》2016年第4期545-550,共6页Journal of Henan Polytechnic University（Natural Science）

基　　金：国家自然科学基金资助项目(71371173);河南省基础与前沿技术研究计划(122300410301)

摘　　要：为控制掌纹及生物识别过程中的安全威胁,提出一种可撤销生物特征的掌纹认证方法。该方法使用二维正交Log-Gabor滤波器从图像中提取二进制掌纹相位模板,通过混沌序列控制的随机密文反馈加密,生成可更新的和隐私保护的掌纹模板。识别匹配阶段在加密域实现,根据2个加密模板间的汉明距离衡量掌纹间的相似性。使用香港理工大学的标准数据库进行了实验,验证了方法的识别性能、执行效率和安全性。A biometrics cancellable palmprint authentication approach is presented in order to control safety of palmprint authentication. In the approach, a novel 2D orthogonal Log-Gabor filter is firstly constructed to extract binary palmprint biometric phase templates. And then the templates are encrypted by chaotic stream ciphers encrypt to generate renewable and privacy preserving palmprint templates. In the matching stage, the Hamming distance between two encrypted palmprint templates is employed to measure the similarity of different palmprints. The experiments carried out on the standard database from Hong Kong Poly tech University demonstrate the authentication performance, execution efficiency and security of the approach.

关 键 词：掌纹认证 LOG-GABOR滤波器 混沌加密 掌纹模板 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]