基于手持设备的二维码图像的生成与识别毕业设计论文.doc

物理电气信息学院 本科毕业论文 PAGE PAGE 2 毕 业 设 计 题 目 基于手持设备的二维码图像的生成与识别 摘 要 近几年，在智能手机系统群雄纷争的时候，2008年Google推出了一款名为Android的开源智能手机操作系统，受到广大手机生产商的重视。对于二维码技术而言，我国对二维码这一技术的需求与日俱增。目前，二维码技术在食品质量追溯上的使用已越来越广泛，借助二维码溯源系统，可以实现食品生产、流通及消费的全过程监控。因此，基于手机平台的二维码识别系统及应用的研究，无论是在理论上还是在实践中都具有十分重要的意义。 本文是基于Android环境下完成二维码生成和识别功能。首先对Android开发环境、组成与架构以及Android SDK 和Eclipse开发工具进行了介绍；其次介绍了二维码技术的认识，主要是从二维码技术特点、二维码溯源系统和二维码的应用前景这几个方面进行了介绍，突出了二维码技术的优势以及在溯源系统中的重要性；接着分析了QR Code二维码的结构、标准及编解码过程，在对这个所设计的二维码全面了解之后，重点的对基于Android系统的二维码生成以及识别的过程展开设计。 关键词：Android; 二维码技术; QR Code; 二维码生成; 二维码识别  ABSTRACT In recent years, under the intelligent mobile phone system warlords disputing, Google developed an open source operating system of intelligent mobile phone which we call it the Android system, attracted manufacturers’ attention, in 2008 years. For the two-dimensional code technology, we need of the 2D code technique has been more and more widely, used in food quality traceability, we can realize the food production, circulation and consumption of the whole process monitoring. So the study of designing the 2D code based on Android is very significant. This article is mainly talk about that to complete the production and recognition of two dimension bar-code based on the Android environment. First, it is the introduction of the Android development environment, composition, construction ,Android SDK and Eclipse development tool. Next, the introduction of two dimension bar-code technology, mainly focused on the special characteristics, tracing system ,application prospect of two dimension bar-code, highlighted the superiority and the importance in tracing system of two dimension bar-code . Then, the analysis of the structure, standard and encoding and decoding process of QR Code, after overall understanding of this designing two dimension bar-code, this paper will key carry on roundly