计算机与现代化 ›› 2012, Vol. 203 ›› Issue (7): 100-103.doi: 10.3969/j.issn.1006-2475.2012.07.027
• 图像处理 • 上一篇 下一篇
陈芋文,向林泓,张昱琳
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CHEN Yu-wen, XIANG Lin-hong, ZHANG Yu-lin
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摘要： 在已有虹膜识别研究成果的基础上，提出基于LogGabor滤波的虹膜身份识别图像系统。该系统利用Matlab平台结合一维LogGabor滤波器对归一化后的虹膜进行滤波并提取纹理特征，然后对纹理特征进行相位编码，并用汉明距离进行虹膜匹配,匹配时采用干扰掩模屏蔽虹膜预处理过程中的噪音。本文结合CASIA虹膜图像数据库进行实验论证，其结果表明该系统误判率为0.125%，拒判率为0.05%，达到较好的识别效果。
关键词: 虹膜识别, 相位编码, 汉明距离
Abstract: On the basis of the existing iris recognition research, the paper proposes an iris recognition system based on Log-Gabor filter. The system uses Matlab plateform, and combines onedimensional LogGabor filter normalized iris texture and uses phase encoding feature extraction, then uses Hamming distance match iris with the interference mask shielding iris preprocessing noise. The CASI iris image database is used in the experiment, results show that the system false positive rate is 0.125%, rejection rate of 0.05%. Better recognition results are achieved.
Key words: iris recognition, phase encoding, Hamming distance
中图分类号:
TP319.4
陈芋文;向林泓;张昱琳. 基于Log-Gabor滤波的虹膜识别系统[J]. 计算机与现代化, 2012, 203(7): 100-103.
CHEN Yu-wen;XIANG Lin-hong;ZHANG Yu-lin. Iris Recognition System Based on Log-Gabor Filter[J]. Computer and Modernization, 2012, 203(7): 100-103.
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链接本文: http://www.c-a-m.org.cn/CN/10.3969/j.issn.1006-2475.2012.07.027
http://www.c-a-m.org.cn/CN/Y2012/V203/I7/100
