机动车辆牌照识别系统【毕业论文】.doc

- PAGE I - 本科毕业设计 （20 届） 机动车辆牌照识别系统 所在学院 专业班级 计算机科学与技术 学生姓名 学号 指导教师 职称 完成日期 年 月 PAGE I 摘　要 【摘要】车牌识别系统是实现交通管理智能化的重要环节，车牌识别系统的应用可有效解决高速公路收费、超速车辆布控、失窃车辆侦察、停车场管理等诸多管理问题。本文研究了车牌识别系统中的车牌定位，字符识别等关键技术。首先对车牌图像进行预处理，然后再根据车牌区域的纹理特征对车牌进行定位。其次利用连通域法分割得到单独的字符，并对字符进行归一化处理。最后是对字符的识别，采用模板匹配的方法对得到的字符进行识别。经测试，效果良好。 【关键词】图像预处理；车牌定位；字符分割；字符识别。 Abstract 【ABSTRACT】The License Plate Recognition system is an important constituent part of an intelligent traffic management. The License Plate Recognition system can be one of the effective solutions many traffic management issues, such as to highway toll applications, speeding vehicles dispatched, stolen vehicle identification, car park management, etc. In this paper, some methods and algorithms are introduced in some steps as license plate location, character recognition. Firstly, an image is preprocessed by several algorithms, and then determines the image’s position based on texture feature. Secondly, the corresponding connection region is used to divide the image into the isolate characters, and characters are normalized in order to be recognized. Lastly a method of template matching is put forward for the purpose of character recognition. Experimental results show that the algorithms are effective. 【KEYWORDS】Image Preprocessing; License Plate Location; Character Segmentation; Character Recognition. 目　录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc293615119 摘　要 PAGEREF _Toc293615119 \h II HYPERLINK \l _Toc293615120 Abstract PAGEREF _Toc293615120 \h III HYPERLINK \l _Toc293615121 目　录 PAGEREF _Toc293615121 \h IV HYPERLINK \l _Toc293615122 1 绪论 PAGEREF _Toc293615122 \h 1 HYPERLINK \l _Toc293615123 1.1 课题的研究背景与意义 PAGEREF _Toc293615123 \h 1 HYPERLINK \l _Toc293615124 1.1.1 课题的研究背景 PAGEREF _Toc293615124 \h 1 HYPERLINK \l _Toc293615125 1.1.2 课题的研究意义 PAGEREF _Toc293615125 \h 1 HYPERLINK \l _Toc293615126 1.2 国内外的研究现状 PAGEREF _