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基于图像处理的车牌识别技术研究

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基于图像处理的车牌识别技术研究(论文14000字)
摘 要:在交通智能化的发展过程中,车辆管理有重要的作用,其中汽车牌照的识别是重要环节,识别过程主要含有车牌图形的定位,对车牌字符的分割过程,对车牌字符的识别三个主要过程。本设计方案通过对车牌初始图像的进行灰度变换预处理,获取灰度图像,然后对预处理后的图像进行边缘提取分析,以闭运算为基础定位出车牌位置。切割图像处理后的车牌并采用局部投影的技术方案分割出字符。最后利用模板匹配代码实现字符识别,并输出识别结果到控制面板。编程通过MATLAB实现设计的车牌识别过程,充分利用MATLAB矩阵计算的优点优化效率,通过测试显示出该设计过程有很好的识别功能。在现代化车辆普及大潮中,我国的公路系统正在加速拓展,车辆管理通过人工管理已不能适应实际需求,把现代技术应用到智能交通的管理过程中是趋势,因此车牌识别存在着广泛的应用前景。
关键词:车牌识别;汽车牌照定位;字符分割;字符定位

Research on License Plate Recognition Technology Based on Image Processing
Abstract:In the process of the development of traffic intelligence, vehicle management plays an important role, in which the recognition of the license plate is an important link. The identification process mainly contains the location of the license plate graphics, the segmentation process of the license plate characters and the recognition of the license plate characters in three main processes. By preprocessing the gray scale transformation of the initial image of the license plate, the gray image is obtained, then the edge of the pre processed image is extracted and analyzed, and the location of the license plate is located on the basis of the closed operation. The license plate is cut in the processed image and the character is segmented by the technology of partial projection. Finally, the template matching code is used to realize the characterrecognition and output the recognition results to the control panel. The process of license plate recognition designed by MATLAB is realized by using the advantages of MATLAB matrix calculation to optimize the efficiency. It shows that the design process has a good recognition function through testing. In the tide of modern vehicle popularization, the highway system in our country is accelerating, and the vehicle management can not adapt to the actual demand by manual management. It is a trend to apply modern technology to the management of intelligent traffic. Therefore, the license plate recognition has a wide application prospect. [来源:http://www.doc163.com]
Key words:license plate recognition; license plate location; character segmentation; character positioning
  [版权所有:http://DOC163.com]

基于图像处理的车牌识别技术研究
基于图像处理的车牌识别技术研究


目录
摘要    1
Abstract    2
1.    绪论    3
1.1 车牌识别的发展过程    3
1.2 车牌识别的应用方向    3
1.3 车牌识别的研究现状    4
1.4 本文内容与章节安排    4
2.    车牌识别基本原理    5
2.1 车牌识别系统概述    5
2.2 车牌识别原理解析    6
2.3 本系统设计方案    6
3.    车牌识别设计实现流程    7 [资料来源:www.doc163.com]
3.1 总体实现流程    7
3.2 MATLAB特点及优势    8
3.3 各模块的实现流程    9
3.2.1 输入预处理采集图像    9
3.2.2 图像的灰度化过程    10
3.2.3 图像边缘检测过程    11
3.2.4 图像的闭运算过程    12
3.2.5 投影提取车牌区域    13
3.2.6 字符分割处理过程    15
3.2.7 模板匹配字符识别    16
4.    实验结果及分析    18
4.1 车牌识别结果对比    18
4.2 车牌识别系统分析    20
5.    归纳与总结    20
参考文献    21

[来源:http://Doc163.com]

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