| 基于灰度直方图最小跨度阈值法的瞳孔分割 |
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| 引用本文： | 宋辉,陈浩杰,张立华.基于灰度直方图最小跨度阈值法的瞳孔分割[J].中国印刷物资商情,2011(2):29-32. |
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| 作者姓名： | 宋辉 陈浩杰 张立华 |
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| 作者单位： | [1]曲阜师范大学电气信息与自动化学院,日照276826 [2]曲阜师范大学印刷学院,日照276826 |
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| 摘 要： | 瞳孔的边缘检测是虹膜提取的一个重要技术内容,本文提出了一种简单有效的虹膜内边缘定位算法,以虹膜图像灰度直方图为基础,通过寻找瞳孔区灰度分布范围的方法确定分离瞳孔的灰度阈值,并利用灰度投影法定位虹膜内边缘。实验结果表明,文中提出的方法能够准确地进行虹膜内边缘定位。
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| 关 键 词： | 虹膜 内边缘 定位 灰度阈值分割 |
Pupil Segmentation Based on the Min-cross Threshold Method on Histograms |
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| SONG Hui,CHEN Haojie,ZHANG Lihua.Pupil Segmentation Based on the Min-cross Threshold Method on Histograms[J].China Printing Materials Market,2011(2):29-32. |
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| Authors: | SONG Hui CHEN Haojie ZHANG Lihua |
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| Institution: | 1.College of Electricity Information and Automation,Qufu Normal University,Rizhao 276826,China;2.College of Graphic Arts,Qufu Normal University,Rizhao 276826,China) |
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| Abstract: | The detection of pupil boundary is a key problem in the iris texture extraction.In this paper,a new and simple algorithm for the location of the iris inner boundary was put forward.This method fixed on the gray-level threshold for pupil segmentation by finding the pupil gray-level range,based on the gray-level histogram of the iris image,and located the iris inner boundary using gray-level projection.The results of experiment proved that the proposed algorithm can be used to locate the iris inner boundary exactly. |
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| Keywords: | Iris Inner boundary Location Gray-level threshold segmentation |
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