小波变换在车牌识别系统中的应用

Application of Wavelet Analysis in License Plate Recognition System

国内近几年城市智能交通系统发展很快,车牌自动识别技术作为其中信息采集的关键部分,在整个智能交通系统中起着重要作用。目前,对车牌自动识别的研究已经成为智能交通领域中的一个重要研究课题。为了使车牌识别准确,对摄像机所获得的图像进行预处理是十分重要的。去除图像中的噪声是预处理的一个重要步骤。本文通过小波分析原理,实现了对所得图像的去噪,并用MATLAB进行了仿真。

The Intelligent Transportation Systems （ITS）has developed quickly recently in our country.As a key part of it to collect the information of cars, the license plate recognition plays an extremely important role in the ITS. Now, the research on it has became an important and hot topic in the field of ITS. To make recognition more accurate, the pre-process of the image is very important. And the key process is the elimination of noise. In this thesis, I eliminate noise by the means of the wavelet. A system simulation is made in MATLAB.