Development of License Plate Detection System using Video Analysis

Abstract

This research is the development of license plate detection system using video analysis technique. We introduce a method to detect character on the top row of the license plate of the car on the entrance gate, that useful in the security system. For this propose, we detect the square of license plate area in image frame using edge detection method and determine the candidate regions by using edge linking method. Then select the edges area of license plate with segmentation method. In order to identify a character and number in the license plate with contour the character and number, we separate character and number to analyze this character and number by using matching with template method and store this result in the database system. Our research develop by C++ language with openCV library. Our method can detect the character and the number with accuracy more than 80% in real time.