[1]陈开志,胡爱群.基于二值化图像的指纹细节点精确提取方法[J].东南大学学报(自然科学版),2010,40(3):471-475.[doi:10.3969/j.issn.1001-0505.2010.03.007]
 Chen Kaizhi,Hu Aiqun.Method of accurate minutiae detection from binary fingerprint image[J].Journal of Southeast University (Natural Science Edition),2010,40(3):471-475.[doi:10.3969/j.issn.1001-0505.2010.03.007]
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基于二值化图像的指纹细节点精确提取方法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
40
期数:
2010年第3期
页码:
471-475
栏目:
计算机科学与工程
出版日期:
2010-05-20

文章信息/Info

Title:
Method of accurate minutiae detection from binary fingerprint image
作者:
陈开志 胡爱群
东南大学信息科学与工程学院, 南京 210096
Author(s):
Chen Kaizhi Hu Aiqun
School of Information Science and Engineering, Southeast University, Nanjing 210096, China
关键词:
图像处理 指纹识别 细节点提取 脊线跟踪
Keywords:
image processing fingerprint recognition minutiae detection ridge line following
分类号:
TP391.4
DOI:
10.3969/j.issn.1001-0505.2010.03.007
摘要:
针对指纹图像质量较差时,基于灰度图的指纹细节点直接提取方法正确率较低,提出一种基于二值化图像的指纹细节点精确提取方法.该方法首先采用方向滤波增强指纹图像,消除各种噪声,然后在二值化图像上进行脊线跟踪,直接提取细节点.脊线跟踪时,采用平滑和加权联合处理来计算脊线下一跟踪点,并提出一种利用循环扩散方法检测脊线连通性的方法,保证脊线跟踪的正确性.实验结果表明,无论图像质量好坏,该方法提取出的细节点正确率都超过80%,优于灰度图直接提取方法及其改进算法.
Abstract:
To deal with low accuracy rates in the method of direct gray-level minutiae detection, a method of accurate minutiae detection from binary fingerprint images is proposed. First, image enhancement is employed to eliminate noise; then,ridge line following is adopted to detect minutiae from binary fingerprint images. The next point of the ridge is calculated jointly by smoothness and weighted processing. Moreover, a loop diffusion detection method is designed to guarantee the detection accuracy by checking the connectivity of the ridge line. The results of the experiments indicate that the accuracy rate of minutiae detected by this method exceeds 80% even if the quality of fingerprint images is poor. That is superior to the method of direct gray-level minutiae detection and its improved methods.

参考文献/References:

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[6] 王芙蓉,程鹏,邹璇.直接提取指纹特征算法的优化研究[J].中国图像图形学报,2004,9(5):557-564.
  Wang Furong,Cheng Peng,Zou Xuan.A novel improved approach of direct minutia extraction from gray-level fingerprint image[J]. Journal of Image and Graphics,2004,9(5):557-564.(in Chinese)
[7] Chikkerur S,Cartwright A N,Govindaraju V.Fingerprint enhancement using STFT analysis[J].Pattern Recognition,2007,40(1):198-211.
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备注/Memo

备注/Memo:
作者简介: 陈开志(1983—),男,博士生; 胡爱群(联系人),男,博士,教授,博士生导师,aqhu@seu.edu.cn.
基金项目: 国家高技术研究发展计划(863计划)资助项目(2009AA01Z427).
引文格式: 陈开志,胡爱群.基于二值化图像的指纹细节点精确提取方法[J].东南大学学报:自然科学版,2010,40(3):471-475. [doi:10.3969/j.issn.1001-0505.2010.03.007]
更新日期/Last Update: 2010-05-20