[1]WANG Liang,LU Huaxiang,JING Weiping,et al.A solution to interference problems in ETC systems based on image verification[J].CAAI Transactions on Intelligent Systems,2012,7(1):50-55.
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A solution to interference problems in ETC systems based on image verification

CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume: 7 Number of periods: 2012 1 Page number: 50-55 Column: 学术论文—人工智能基础 Public date: 2012-02-25
Title:
A solution to interference problems in ETC systems based on image verification
Author(s):
WANG Liang1;  LU Huaxiang1;  JING Weiping2;  CHEN Tianxiang3
1. Institute of Semiconductors, Chinese Academy of Science, Beijing 100083, China;
2. Jiangsu Key Lab of ASIC Design, Nantong University, Nantong 226019, China;
3. Electronic and Electrical Engineering Department, Xiamen University of Technology, Xiamen 361005, China
Keywords:
electronic toll collection(ETC);  license plate verification;  convexandconcave feature;  followingcar interference;  adjacent lane interference
CLC:
TP39
DOI:
-
Abstract:
The cause for interference problems in electronic toll collection (ETC) systems is a lack of a means to verify the vehicle information collected through microwave communication. A fast license plate verification method based on the character image’s convexandconcave features was proposed in this paper. This method uses the vehicle information collected by an ETC system as known information and chooses the character image’s convexandconcave features to verify whether the vehicle information originates with the car in question. Because this method needs no complicated preprocessing and does not involve direct character recognition, it complies with the ETC system’s realtime requirements. Experimental results show that this method, supplemented by color and size verification, can reliably detect illegal vehicles and solve interference problems in ETC systems. 
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