基于小波去噪的车牌定位系统

Position System of automobile license plate location based on wavelet in noise cancellation

如何避免外界环境的变换对车牌定位的影响是一个有待研究的问题,介绍基于小波去噪的车牌定位系统及其在车牌定位流程中采用小波去噪法去除外界噪声对车牌定位影响的方法,通过边缘加强、中值滤波,最后通过垂直投影和水平投影对车牌精确位置进行检测,取得了较好的定位效果。

In order to protect the automobile license plate location form the effect of the environment, it was introduced Position System of automobile license plate location based on wavelet in noise cancellation. By means of removing the noise using the wavelet in the course of preproeessing, margin strengthening, median filtering and testing the precise location of the number plate using vertical projection and horizontal projection at last, the efficiency of the method was proved by computer simulation.