Title :
Vehicle license plate character recognition
Author :
Xiaobo, Lu ; Xiaojing, Ling ; Wei, Nuang
Author_Institution :
Res. Center of Intelligent Transp. Syst., Southeast Univ., Nanjing, China
Abstract :
In this paper a system for the recognition of Chinese vehicle license plates is present. Images acquired under real conditions are often anamorphic. A method is designed to adjust the anamorphic vehicle license plates. Images are also influenced by weather and rays, which often make gray scale inhomogeneous. A preprocessing operation is used to solve this problem. Using pattern matching for character recognition, we can avoid isolating the characters and enhance the correctness of character extracting. To the question that few characters are easy to be confused, we construct BP neural networks to complete effective character recognition.
Keywords :
backpropagation; character recognition; feature extraction; neural nets; pattern matching; road vehicles; BP neural networks; Chinese vehicle license plates; anamorphic vehicle license plates; backpropagation; character extraction; character isolation; pattern matching; preprocessing operation; vehicle license plate character recognition; Character recognition; Design methodology; Focusing; Image recognition; Intelligent systems; Intelligent vehicles; Interpolation; Licenses; Neural networks; Traffic control;
Conference_Titel :
Neural Networks and Signal Processing, 2003. Proceedings of the 2003 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
0-7803-7702-8
DOI :
10.1109/ICNNSP.2003.1281053