NDLI: Method of License Plate Location Based on Corner Feature

Content Provider	IEEE Xplore Digital Library
Author	Zhong Qin Shengli Shi Jianmin Xu Hui Fu
Copyright Year	2006
Description	Author affiliation: Coll. of Traffic & Commun., Southern China Univ. of Technol., Guangzhou (Zhong Qin; Shengli Shi; Jianmin Xu; Hui Fu)
Abstract	License plate location (LPL) plays an important role in the license plate recognition (LPR). The license plate characters contain abundant corners which distribute intensively and regularly. Accord to the feature, a novel method to locate the license plate accurately and fast is proposed in this paper. The method is dived into three steps which are corners detection, finding out candidate license plates and locating the license plate accurately. In the course of locating license plate, three thresholds are used. First, the reasonable threshold is used to eliminate a great number of non-corner pixels to speedup corner-detections. Second, a big threshold is selected with a slid window to find out candidates. Finally, the region of candidate license plates are expanded, all the corners in it were stand out with a smaller threshold, and the license plate is located accurately using clustering analyses. Experiments have been conducted, 1200 license plate images are tested, the accuracy is 98.42% and the average consuming time is 20ms
Starting Page	8645
Ending Page	8649
File Size	319575
Page Count	5
File Format	PDF
ISBN	1424403324
DOI	10.1109/WCICA.2006.1713668
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-06-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Licenses Space technology Vehicle detection Intelligent systems Intelligent vehicles Image segmentation Image edge detection Character recognition Space vehicles Neural networks Corner Detection License Plate Location intelligence traffic systems License Plate Recognition
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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