Regular Articles

License plate localization in complex scenes based on oriented FAST and rotated BRIEF feature

[+] Author Affiliations
Ran Wang, Yuanchun Xia, Guoyou Wang, Jiangmin Tian

Huazhong University of Science and Technology, Science and Technology on Multispectral Information Processing Laboratory, School of Automation, 1037 Luoyu Road, Wuhan 430074, China

J. Electron. Imaging. 24(5), 053011 (Sep 21, 2015). doi:10.1117/1.JEI.24.5.053011
History: Received March 13, 2015; Accepted August 21, 2015
Text Size: A A A

Abstract.  Within intelligent transportation systems, fast and robust license plate localization (LPL) in complex scenes is still a challenging task. Real-world scenes introduce complexities such as variation in license plate size and orientation, uneven illumination, background clutter, and nonplate objects. These complexities lead to poor performance using traditional LPL features, such as color, edge, and texture. Recently, state-of-the-art performance in LPL has been achieved by applying the scale invariant feature transform (SIFT) descriptor to LPL for visual matching. However, for applications that require fast processing, such as mobile phones, SIFT does not meet the efficiency requirement due to its relatively slow computational speed. To address this problem, a new approach for LPL, which uses the oriented FAST and rotated BRIEF (ORB) feature detector, is proposed. The feature extraction in ORB is much more efficient than in SIFT and is invariant to scale and grayscale as well as rotation changes, and hence is able to provide superior performance for LPL. The potential regions of a license plate are detected by considering spatial and color information simultaneously, which is different from previous approaches. The experimental results on a challenging dataset demonstrate the effectiveness and efficiency of the proposed method.

Figures in this Article
© 2015 SPIE and IS&T

Citation

Ran Wang ; Yuanchun Xia ; Guoyou Wang and Jiangmin Tian
"License plate localization in complex scenes based on oriented FAST and rotated BRIEF feature", J. Electron. Imaging. 24(5), 053011 (Sep 21, 2015). ; http://dx.doi.org/10.1117/1.JEI.24.5.053011


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.