改进的指纹检测算法的MATLAB仿真  

MATLAB Simulation on Improved Fingerprint Detection Algorithm

作　　者：史彦 夏兴国[1] SHI Yan;XIA Xing-guo(Department of Electrical Engineering,Ma’anshan Vocational and Technical College,Ma’anshan 243000,China)

机构地区：[1]马鞍山职业技术学院电气工程系,安徽马鞍山243000

出　　处：《南通职业大学学报》2023年第3期76-81,共6页Journal of Nantong Vocational University

基　　金：安徽省高校自然科学研究项目(KJ2020A0929);安徽省高校(专业)拔尖人才学术资助项目(gxbjZD2022117)。

摘　　要：为提高指纹识别的准确度和速度,针对不同类型的指纹提出一种预处理和特征提取算法:先利用方向滤波对原始指纹图像进行增强,再用改进的细化算法进行处理,最后运用脊线跟踪技术剔除指纹中的伪特征。MATLAB仿真结果表明,改进的指纹检测算法运算速度更快,指纹匹配识别率达99%,方法可行,效果达到预期。To improve the accuracy and accelerate the fingerprint recognition,an algorithm for preprocessing and feature extraction is developed to identify different types of fingerprints.Firstly,the image of original fingerprint is enhanced by directional filtering.Then,a refined algorithm is developed to process the image.Finally,the ridge tracking technology is used to eliminate false features in the fingerprint.The Matlab simulation results show that the improved algorithm for fingerprint detection works faster with the fingerprint matching recognition rate reaching 99%,achieving the desired effect.

关 键 词：指纹识别 检测算法 预处理 特征提取 细化 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]