《指纹识别算法的matlab实现》.doc

PAGE 2 摘 要 随着生物识别技术的不断发展，人们发现每个人的指纹具有唯一性和不变性。因此指纹识别技术逐步发展为一种新的身份识别方式，并且凭借其良好的安全可靠性，大有取代传统身份识别方式的趋势。 本文简要介绍了指纹识别的基本步骤，分别是指纹图像预处理、指纹特征提取、指纹匹配。在图像预处理中，依次介绍了规格化处理、图像增强、二值化处理和细化处理的方法。预处理后将得到一幅宽度为一个像素的细化二值图像，然后通过特定的端点和交叉点的特征进行指纹匹配。论文中采用MATLAB编程实现全部算法。 关键词：指纹识别，图像处理，特征提取，特征匹配 Abstract With the continuous development of Biometric Identification Technology,People found that each persons fingerprint has uniqueness and invariant.Therefore Fingerprint Identification Technology gradually developed as a new identity recognition mode，and with its good safety and reliability，it has replaced the traditional identification way trends. This paper briefly introduces the basic step of Fingerprint Identification，they are Fingerprint image preprocessing, Fingerprint characteristic extraction,Fingerprint matching.In the Fingerprint image preprocessing,in turn introduced the normalized processing, Image enhancement, Binary treatment and Refining processing method.After pretreatment will get a picture for a pixel width of twenty-first-century binary image,then through the particular endpoint and intersection on the characteristics of the Fingerprint matching.This paper using Matlab programs all algorithm. Key words Fingerprint identification Image processing Feature extraction Feature matching 目 录 TOC \o 1-3 \h \u HYPERLINK \l _Toc31421 摘要 PAGEREF _Toc31421 I HYPERLINK \l _Toc12682 Abstract PAGEREF _Toc12682 II HYPERLINK \l _Toc22136 第1章 绪论 PAGEREF _Toc22136 1 HYPERLINK \l _Toc28833 1.1 研究背景及意义 PAGEREF _Toc28833 1 HYPERLINK \l _Toc6269 1.2 国内外研究现状及分析 PAGEREF _Toc6269 1 HYPERLINK \l _Toc19025 1.3 设计内容与要求 PAGEREF _Toc19025 2 HYPERLINK \l _Toc21327 第2章 指纹识别的基本理论及应用 PAGEREF _Toc21327 3 HYPERLINK \l _Toc19668 2.1 指纹识别的原理和方法 PAGEREF _Toc19668 3 HYPERLINK \l _Toc4857 2.1.1 指纹的特征与分类 PAGEREF _Toc4857 3 HYPERLINK \l _Toc6108 2.1.2 指纹识别的原理和方法 PAGEREF _Toc6108 3 HYPERLINK \l _Toc29936 2.2.1 算法的精确度 PAGEREF _Toc29936 4 HYPERLINK \l _