The Design And Implementation Of A Car License Plate Identify System

The development of transportation is a level elevated basic condition of a society development and people living. Work out a transportation problem by improving the conveyance ability of the existing road, highway network and the intelligence transportation system of the conveyance efficiency is an important path to keep economy development. License plate's automatically identifying is a technique of an intelligence transportation.This text illustrates a design and realization method of the license plate identifing system.The system shoots head ambulation and pull of lens to stretch, adjust burnt etc. mission through cloud pedestal control, then catches the video data which the video card obtains to the spot station host. Before identify in the license plate, change the license plate picture to ash degree picture. Then adopts Hough transformation to the inclination for the convenience of partitioning at the subsequent license plate character.After preparing process, use the license plate fixed position by learns according to the color space and ash degree appearance method, withdraw a license plate picture from the candidate for election district. Then carry on character partition, find out each character in the license plate picture. Finally uses a network according to the nerve dollar identify technique to identify a license plate character.In the license plate fixed position technique the most unsteady factor is two values medium settle. This text use learns according to the color space and the ash degree appearance method, intentionally avert from the problem. The main method is convert the HSV colorful space from the RGB colorful space, convert a picture again to 5 class ash degree diagram, then adopt an ash degree appearance to learn an operation and accurately partition a license plate in the original picture from the candidate district. This method obtained a better effect in the fulfillment and can be a reference by the system.