【正文】
tem, parking system, stolen vehicle identification system, guard system, intelligent transportation system and so on. It has many contributions on the automation of the transportation management.In this thesis, some methods and algorithms are introduced by preprocessing of images, license plate locations, character segmentations and character recognitions. Also, the methods and algorithms have a prehensive discussion of the overall designs. Moreover, I have pared the methods with the existing. At the same time, I try to design and improve parts of critical algorithms.This process includes preprocessing of images, license plate locations, character processing and character recognitions. The preprocessing of images is the first one I want to introduce. The image preprocessing is that an image is processed by several algorithms which include gray level stretching, image binarization, median filter, edge detection, and removed noise. Through the processing, the noises on the image are eliminated effectively, and vertical texture on image is clearer. License plate locations are extremely important steps in the puter vision system. There is a location method which bases on a horizontal texture feature and a vertical texture feature is put forward in this thesis. This method can get a satisfactory recognition effect. Character processing is work for license plate. In the beginning, inclination rectification method is applied to license plate images. The second step is the corresponding connection regions are used to be divided into several isolate characters. Finally, characters are normalized. These normalized characters can help to be recognized. The character recognitions we select 13 features which are based on template matching method for the purpose of character recognition with high speed and high recognition rate. The program is using a pure software method to achieve the automatic license plate character recognitions and to reach a higher recognition rate.Keywords: image preprocessing。本文采取的方法是根據(jù)車牌區(qū)域的橫向豎向紋理特征對車牌進行定位,具有較高的車牌定位準確率。本程序包括圖像預(yù)處理,車牌定位,字符處理和字符識別四部分。具體要求如下: 1. 對給定的靜止圖像(假設(shè)存在車輛)進行預(yù)處理分析 2. 完成車牌定位、字符分割、字符識別等步驟,進行車牌識別 3. 輸出車牌的識別結(jié)果 4. 人機界面簡單清楚友好 二、應(yīng)完成的硬件或軟件實驗 1. 利用 VC++編程實現(xiàn)車牌照識別系統(tǒng)的設(shè)計 2.設(shè)計一個人機交互界面以顯示和記錄車牌照識別的各步驟和結(jié)果 三、應(yīng)交出的設(shè)計文件及實物(包括設(shè)計論文、程序清單或磁盤、實驗裝置或產(chǎn)品等) 1. 畢業(yè)設(shè)計論文(必須完全符合學(xué)校規(guī)范,內(nèi)容嚴禁有絲毫的抄襲剽竊) . 2. CDR(含論文,程序,程序使用說明書,演示視頻,盤面注明姓名,專業(yè),日期) 西南交通大學(xué)本科畢業(yè)設(shè)計(論文) 第 III 頁 3. 英文翻譯按學(xué)校規(guī)定,導(dǎo)師無特殊要求 四、指導(dǎo)教師提供的設(shè)計資料 1. 研究介紹(包括課題背景、動機、內(nèi)容、意義) 2. 計劃說明書 3. 部分英文文獻資料 五、要求學(xué)生搜集的技術(shù)資料(指出搜集資料的技術(shù)領(lǐng)域) 1. 本課題相關(guān)領(lǐng)域國內(nèi)外重要論文及資料 2. 圖像處理知識與 VC++編程學(xué)習(xí)指南 六、設(shè)計進度安排第一部分 查閱資料,學(xué)習(xí)相關(guān)編程語言 ( 4 周)第二部分 編制程序并進行調(diào)試 ( 10 周)第三部分 撰寫畢業(yè)論文 ( 2 周) 評閱及答辯 畢業(yè)論文修改和參加答辯 ( 1 周) 指導(dǎo)教師: 年 月 日系主任審查意見: 西南交通大學(xué)本科畢業(yè)設(shè)計(論文) 第 IV 頁審 批 人: 年 月 日注:設(shè)計任務(wù)書審查合格后,發(fā)到學(xué)生手上。西 南 交 通 大 學(xué)畢業(yè)設(shè)計(論文)基于 VC++的車牌識別系統(tǒng)研究年 級: 2022 級 學(xué) 號: 20222241 姓 名: 謝天 專 業(yè): 自動化(交通信息工程及控制方向)指導(dǎo)老師: 侯進 二零一零年六月西南交通大學(xué)本科畢業(yè)設(shè)計(論文) 第 I頁院 系 信息科學(xué)與技術(shù)學(xué)院 專 業(yè) 自動化(交通信息工程及控制方向) 年 級 2022 級 姓 名 謝天 題 目 基于 VC++的車牌識別系統(tǒng)研究 指導(dǎo)教師評 語