本科毕业论文(设计)
题 目： 智能安防系统中人脸识别系统
学 院： 自动化工程学院 专 业： 电子信息科学与技术 班 级： 2009级1班 姓 名： 陈修伍 指导教师： 贺 英
2013年 6 月 3 日
智能安防系统中人脸识别系统
Face recognition system in intelligent security system
青岛大学本科生毕业论文（设计）
摘 要
安防系统是实施安全防范控制的重要技术手段，在当前安防需求膨胀的形势下，其在安全技术防范领域的运用也越来越广泛，随着光电信息技术、微电子技术、微计算机技术与视频图像处理技术等的发展，传统的安防系统也正由数字化、网络化，而逐步走向智能化。而实现自动的面部识别对于智能安防系统有着举足轻重的作用，随着Android的兴起，可以做到移动设备上实现人脸识别技术，这就为智能化安保系统的实现提供了全新的思路。
本文的主题就是基于Android编程平台，基于JAVA编程实现在手机上显示从文件夹中读取的人脸位图，编程实现人脸检测PCA算法，实现在人脸图片上用算法自动画出方框标注人脸区域；可设置一张图片中最多检测的人脸个数。
关键词 智能安防 Android 人脸识别 JAVA编程 PCA算法
青岛大学本科生毕业论文（设计）
Abstract
The security system is the important technical means of security control, in the current security demand expansion of the situation, the security technology field is used more and more widely, With the photoelectric information technology, microelectronics, micro computer technology and deal with video images technology, the traditional security systems are also being used by digital, networked, and gradually move toward intelligent. And the realization of automatic facial recognition has play a decisive role for the intelligent security system, with the rise of Android, can be done on the mobile device to realize the face recognition technology, which provides a new approach for the realization of intelligent security system.
This paper is based on the platform of Android programming, Java programming bitmap display face read from a folder on the mobile phone based on PCA face detection algorithm, programming, realize automatic draw the box labeled face region using the algorithm in image face; face detection can be up to set a picture of.
Keywords intelligent security Android face recognition JAVA programming PCA algorithm
青岛大学本科生毕业论文（设计）
目 录
第一章 绪论 ........................................................................................................... 1
1.1 课题背景 ............................................................................................................................ 1 1.2 人脸识别的发展状况 ......................................................................................................... 1 1.3 本课题研究意义 ................................................................................................................. 2 1.4 本文的主要内容及结构 ..................................................................................................... 3
第二章 研究方案及技术路线 ............................................................................... 4
2.1 研究内容 ............................................................................................................................. 4 2.1.1 研究对象 ...................................................................................................................... 4 2.1.2 制约识别率的关键问题 .............................................................................................. 4 2.2 研究方案 ............................................................................................................................. 4 2.2.1 相关人脸识别算法对比 .............................................................................................. 4 2.2.2 运用程序功能分析 ...................................................................................................... 5 2.2.3 研究方案的确定 .......................................................................................................... 6 2.3 技术路线 ............................................................................................................................. 7
第三章 图像预处理 ............................................................................................... 8
3.1 彩图灰度化 ......................................................................................................................... 8 3.2 直方图均衡化 ..................................................................................................................... 9 3.3 图像平滑滤波 ................................................................................................................... 10 3.4 边缘检测 ........................................................................................................................... 10 3.5 人脸部位提取 ................................................................................................................... 11
第四章 基于Android的人脸检测技术原理 ..................................................... 13
4.1 Android编程平台 ............................................................................................................. 13 4.1.1 Android 开发平台搭建 ........................................................................................... 13 4.1.2 Android开发简介 .................................................................................................... 13 4.2 人脸图像获取 ................................................................................................................... 14 4.2.1 Android 应用程序组件(Activity简介) .................................................................... 14 4.2.2 Bitmap和Drawable和Canvas ................................................................................. 17 4.3 PCA算法原理分析 .......................................................................................................... 18 4.3.1 训练阶段 .................................................................................................................... 18
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