Title :
A new algorithm for character segmentation of license plate
Author :
Zhang, Yungang ; Zhang, Changshui
Author_Institution :
Dept. of Autom., Tsinghua Univ., Beijing, China
Abstract :
Character segmentation is an important step in License Plate Recognition (LPR) system. There are many difficulties in this step, such as the influence of image noise, plate frame, rivet, space mark, and so on. This paper presents a new algorithm for character segmentation, using Hough transformation and the prior knowledge in horizontal and vertical segmentation respectively. Furthermore, a new object enhancement technique is used for image preprocessing. The experiment results show a good performance of this new segmentation algorithm.
Keywords :
Hough transforms; character recognition; computer vision; image segmentation; road traffic; road vehicles; Hough transformation; character segmentation; horizontal segmentation; image noise; image preprocessing; image segmentation; license plate recognition system; plate frame; space mark; vertical segmentation; Automation; Character recognition; Histograms; Image analysis; Image segmentation; Intelligent systems; Laboratories; Licenses; Pixel; Space technology;
Conference_Titel :
Intelligent Vehicles Symposium, 2003. Proceedings. IEEE
Print_ISBN :
0-7803-7848-2
DOI :
10.1109/IVS.2003.1212892
