| 基于Matlab实现的指纹图像细节特征提取 |
| |
| 引用本文： | 郭晶莹,吴晴,商庆瑞.基于Matlab实现的指纹图像细节特征提取[J].计算机仿真,2007,24(1):182-185. |
| |
| 作者姓名： | 郭晶莹 吴晴 商庆瑞 |
| |
| 作者单位： | 北京工业大学,北京,100022 |
| |
| 摘 要： | 指纹图像的特征提取是指纹识别的关键,而指纹匹配通常基于细节点匹配.介绍了一套基于Matlab实现的指纹细节特征提取方法,并给出了去伪算法.指纹特征提取是从细化后的指纹图中得到细节特征点(即端点和分叉点),此特征点含有大量的伪特征,既耗时又影响匹配精度.采用了边缘去伪和距离去伪,使得特征点去伪前后减小了近1/3,然后提取可靠特征点信息,以便实现指纹匹配.实验证明,用Matlab实现的这种方法,既简单快速,而且具有较高的准确率.
|
| 关 键 词： | 指纹识别 细节点 特征提取 伪特征点 Matlab 指纹图像 细节特征提取 Based Image Fingerprint Extraction 准确率 快速 验证 信息 距离 边缘 匹配精度 影响 伪特征 分叉点 端点 细节特征点 算法 |
| 文章编号： | 1006-9348(2007)01-0182-04 |
| 修稿时间： | 2005-11-04 |
Minutiae Extraction of Fingerprint Image Based on Matlab |
| |
| GUO Jing-ying,WU Qing,SHANG Qing-rui.Minutiae Extraction of Fingerprint Image Based on Matlab[J].Computer Simulation,2007,24(1):182-185. |
| |
| Authors: | GUO Jing-ying WU Qing SHANG Qing-rui |
| |
| Affiliation: | Beijing university of Technology, Beijing 100022, China |
| |
| Abstract: | Minutiae extraction is essential in fingerprint recognition,and fingerprint match is used to search minutiae.This paper introduces a set of algorithms for extracting minutiae from fingerprint image based on Matlab.Minutiaes(end minutia and bifurcation minutia) are extracted from thinned fingerprint image and they have a lot of false minutiaes.They are not only time-consuming,but also affect matching precision.Most false minutiae are eliminated by a method using edge-deleting and distance-threshold in this paper.Reliable minutiaes are extracted in order to achieve fingerprint match.The experimental results show that this algorithm of matlab is simple,quick and accurate. |
| |
| Keywords: | Fingerprint recognition Minutia Minutiae extraction False minutiae |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
