| 一种基于改进PM方程的虹膜预处理算法 |
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| 引用本文： | 周黎,须文波.一种基于改进PM方程的虹膜预处理算法[J].江南大学学报(自然科学版),2006,5(6):654-656,669. |
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| 作者姓名： | 周黎 须文波 |
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| 作者单位： | 江南大学,信息工程学院,江苏,无锡214122 |
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| 摘 要： | 提出了一种新的虹膜预处理方法.该方法使用基于改进PM方程构建的扩散滤波器对虹膜进行平滑预处理,利用其保边光滑的特性提取虹膜内边缘点.仿真结果显示,该算法的稳定性、速度和精度已经达到较高程度.
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| 关 键 词： | 虹膜预处理 PM方程 保边光滑 |
| 文章编号： | 1671-7147（2006）06-0654-03 |
| 收稿时间： | 2006-03-28 |
| 修稿时间： | 2006-03-282006-06-05 |
An Algorithm for Iris Processing Based on Improved Perona-Malik Equation |
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| ZHOU Li,XU Wen-bo.An Algorithm for Iris Processing Based on Improved Perona-Malik Equation[J].Journal of Southern Yangtze University:Natural Science Edition,2006,5(6):654-656,669. |
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| Authors: | ZHOU Li XU Wen-bo |
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| Institution: | School of Information Technology, Southern Yangtze University ;Wuxi 214122,Chins |
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| Abstract: | Iris preprocessing is one of the most important parts of Iris Recognition system to affect the quality and efficiency of recognition.The article presents a new method of Iris preprocessing which use diffusion filter based on improved Perona-Malik equation to process Iris smoothly.This method makes use of the edge-preserving smoothing character of the diffused filter to pick-up some points of Iris' internal edge.The simulating result shows that method the article mentioned is superior to the existing methods.The performance for speed,robustness and precision achieve high level. |
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| Keywords: | iris preprocessing Perona-Malik equation edge-preserving smoothing |
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