指纹识别系统的设计.doc

PAGE PAGE 1 指纹识别系统的设计 摘 要 随着计算机技术的发展，作为身份识别手段的生物识别技术得到了广泛的应用，指纹识别技术作为生物识别技术的一种更是发展迅速。指纹具有唯一性、稳定性、再生性等特点，指纹识别技术为身份识别提供了更加可靠的手段。 指纹识别是数字图像处理及模式识别领域的一个重要分支,也是一个极富挑战性的课题。本文详细介绍了指纹识别技术的各个方面。指纹识别算法一般包括预处理和特征提取与匹配两大部分。其中预处理通常包括灰度均衡化处理、图像滤波、图像二值化以及图像细化等步骤。本课题主要是对以上各个步骤利用MATLAB编程实现，并给出了各个步骤的实验结果。实验结果表明，采用MATLAB平台实现的指纹识别算法简单实用，指纹图像处理效果较好。 关键词：数字图像处理；指纹识别；预处理；特征提取与匹配；MATLAB ABSTRACT With the developing of computer technology, the Biometric Identification technology which as Identification method has got widespread application and Fingerprint Indentification technology which as Biometric Identification technology has developed rapidly. The fingerprint has characteristics of uniqueness, stability, reproducibility,so fingerprint indentification technology can provide more reliable methods for Identification. Fingerprint Indentification is an important branch in the field of digital image processing and pattern recognition, also is an overwhelming project. This article introduce all aspects of Fingerprint Indentification technology in detail. The Fingerprint Identification algorithm includes two major parts about the pretreatment part and the characteristic extracting and matching part.And the pretreatment part usually includes grayscale equalizing processing,image filter, image binaryzation, image thinning and so on . This Project mainly implement the above each step by using MATLAB, and give experimental result of each step. The experimental results prove that The Fingerprint Identification algorithm which base on MATLAB are simple practical and the effect of fingerprint imagery processing is good. Keyword: Digital picture processing；Fingerprint identification；Pretreatment；Characteristic extracting and matching；MATLAB 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc289427286 摘 要 HYPERLINK \l _Toc289427287 ABSTRACT HYPERLINK \l _Toc289427288 第一章 概论 PAGEREF _Toc289427288 \h 1 HYPERLINK \l _Toc289427289 1.1数字图像处理技术 PAGEREF _Toc289427289 \h 1 HYPERLINK \l _Toc289427290 1.