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Random-Positioned License Plate Recognition Using Hybrid Broad Learning System and Convolutional Networks
Chen, C. L.Philip1,2; Wang, Bingshu2
2020-08-04
Source PublicationIEEE Transactions on Intelligent Transportation Systems
ISSN1524-9050
Volume23Issue:1Pages:444-456
Abstract

This paper proposes a framework combing a fully convolutional network with broad learning system for license plate recognition. The fully convolutional network, which is designed as a pixel-level two-class classification method, is proposed for random-positioned object detection by the fusion of multi-scale and hierarchical features. For character segmentation, a trained AdaBoost cascade classifier is employed to locate a key character representing for an administrative area. We design a symmetric region horizontal projection method to estimate the license plate slant angles, and an approach based on vertical projection without hyphens to solve the problem of touching characters. For character recognition, the broad learning system with stacked auto-encoder of mapped feature nodes is proposed, and two structures are explored to recognize letters and digits, respectively. Experiments conducted on Macau license plates show that the proposed method outperforms some state-of-the-art approaches. The compatibility and generality can be expected by applying the proposed method to other regions or countries.

KeywordBroad Learning System Fully Convolutional Network License Plate Recognition Random-positioned Object Detection
DOI10.1109/TITS.2020.3011937
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering ; Transportation
WOS SubjectEngineering, Civil ; Engineering, Electrical & Electronic ; Transportation Science & Technology
WOS IDWOS:000735517000037
PublisherInstitute of Electrical and Electronics Engineers Inc.
Scopus ID2-s2.0-85105023089
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Citation statistics
Document TypeJournal article
CollectionDEPARTMENT OF COMPUTER AND INFORMATION SCIENCE
Faculty of Science and Technology
Affiliation1.School of Computer Science and Engineering, South China University of Technology, Guangzhou, 510641, China
2.Department of Computer and Information Science, Faculty of Science and Technology, University of Macau, Taipa, Macao
First Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Chen, C. L.Philip,Wang, Bingshu. Random-Positioned License Plate Recognition Using Hybrid Broad Learning System and Convolutional Networks[J]. IEEE Transactions on Intelligent Transportation Systems, 2020, 23(1), 444-456.
APA Chen, C. L.Philip., & Wang, Bingshu (2020). Random-Positioned License Plate Recognition Using Hybrid Broad Learning System and Convolutional Networks. IEEE Transactions on Intelligent Transportation Systems, 23(1), 444-456.
MLA Chen, C. L.Philip,et al."Random-Positioned License Plate Recognition Using Hybrid Broad Learning System and Convolutional Networks".IEEE Transactions on Intelligent Transportation Systems 23.1(2020):444-456.
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