License Plate Recognition System

Abstract

This paper presents a novel method of identifying and recognizing license plates, required by an automatic vehicle identification system. The main challenge was the isolation of the car’s license plate, from the digital image acquired by the video system, under different illumination conditions and various angles. Thus, we have established the required preprocessing operations leading to successful plate identification. The string recognition stage is straightforward, after the completion of the character extraction process. Tested on Romanian plate images, the system performance was 93% of correct identified plates and 88.57% of correct recognized characters. Suggestion for further improvements are presented, as well as further related project developpment.