| 一种基于几何原理的虹膜定位算法 |
| |
| 引用本文： | 王江南,吴冬梅. 一种基于几何原理的虹膜定位算法[J]. 计算机应用与软件, 2010, 27(1): 250-251,254 |
| |
| 作者姓名： | 王江南 吴冬梅 |
| |
| 作者单位： | 西安科技大学通信与信息工程学院,陕西,西安,710054 |
| |
| 摘 要： | 虹膜定位是虹膜识别系统中很重要的组成部分,其中定位的速度及准确率是重要的因素。结合人眼的结构特征设计了虹膜定位算法。算法先定位出瞳孔内任意一点,再用边缘检测模板检测出不共线三点定位出内边缘。算法提出用比较四点两次的定位结果来确定外边缘。对已有的755幅虹膜图片进行定位,准确率达98.15%。并且应用简单的几何原理使得算法的鲁棒性能得到保证。
|
| 关 键 词： | 虹膜识别 虹膜定位 边缘检测模板 几何原理 |
AN IRIS LOCATION ALGORITHM BASED ON GEOMETRICAL THEORY |
| |
| Wang Jiangnan,Wu Dongmei. AN IRIS LOCATION ALGORITHM BASED ON GEOMETRICAL THEORY[J]. Computer Applications and Software, 2010, 27(1): 250-251,254 |
| |
| Authors: | Wang Jiangnan Wu Dongmei |
| |
| Affiliation: | College of Communication and Information Engineering/a>;Xi'an University of Science and Technology/a>;Xi'an 710054/a>;Shaanxi/a>;China |
| |
| Abstract: | Iris location is an important part in iris recognition system,and the speed and the accuracy of location are the important factors.An iris location algorithm was designed based on the structure characteristics of human eyes.An arbitrary point in iris was firstly located in the algorithm,then three boundary points which were not on the same line were found with boundary detection template to locate the inner boundary.The algorithm determines the outer boundary by comparing twice the best location results of ... |
| |
| Keywords: | Iris recognition Iris location Edge detection template Geometrical theory |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
