虹膜识别算法研究  

Research of Iris Recognition algorithm

作　　者：杜杏菁[1] 刘春梅[1] 

机构地区：[1]华北科技学院计算机系,北京东燕郊101601

出　　处：《华北科技学院学报》2008年第1期85-89,共5页Journal of North China Institute of Science and Technology

摘　　要：为了提高虹膜识别的速度和准确性,提出一种新的虹膜图像均衡法:将直方图均衡法和局部对比度增强法结合起来调节图像动态范围、增强局部对比度,并利用平衡式零谱矩滤波器对预处理后的虹膜图像进行分解,提取更准确的虹膜纹理特征。整个虹膜识别过程小于1.3 s,准确率97.25%。可用于个人身份识别中。In order to improve the speed and accuracy of iris recognition, a new iris image balance algorithm is developed ： Histogram equalization and part contrast enhancement are combined to adjust development range and enhance the part contrast. Zero spectral moment filters were used to decompose the pre-processing iris image for getting more exact iris texture features. The whole iris recognition process requires less 1.3 s and achieves an identification rate of 97.25%. it can be used in a personal i- dentification system.

关 键 词：虹膜识别 二值化 阈值 直方图均衡法 零谱矩滤波器 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]