| 基于Hough变换的虹膜定位算法 |
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| 引用本文： | 陈功,周又玲.基于Hough变换的虹膜定位算法[J].华东理工大学学报(自然科学版),2004,30(2):230-233. |
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| 作者姓名： | 陈功 周又玲 |
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| 作者单位： | 华东理工大学信息科学与工程学院,上海,200237 |
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| 摘 要： | 针对利用Hough变换实现虹膜定位时遇到的一些问题提出了相应的解决方案。为减少Hough变换的计算量，本算法采用了“先采样后变换”、“由粗到精”的方法；为提高可靠性、减小噪声影响，算法利用了虹膜内外边界之间的耦合关系以缩小在边界参数空间内的搜索范围。在MAT—LAB软件环境下的试验表明，算法取得了良好的效果。
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| 关 键 词： | 虹膜识别 虹膜定位 边缘检测 Hough变换 |
| 文章编号： | 1006-3080(2004)02-0230-04 |
| 修稿时间： | 2003年5月9日 |
Iris Location Based on Hough Transform |
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| CHEN Gong,ZHOU You-ling.Iris Location Based on Hough Transform[J].Journal of East China University of Science and Technology,2004,30(2):230-233. |
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| Authors: | CHEN Gong ZHOU You-ling |
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| Institution: | CHEN Gong,ZHOU You-ling~* |
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| Abstract: | The basic iris location algorithm based on Hough transform is reviewed, and several problems involved in implementing the algorithm are discussed. A two-step coarse-to-fine approach is used to reduce the time and space complexity. The relation between inner and outer edge of iris is exploited to (reduce) the influence of noise. Experiments under MATLAB prove the effectiveness and efficiency of the (algorithm.) |
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| Keywords: | iris recognition iris location edge detection Hough transform |
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