By Topic

Automatic license number extraction and its parallel implementation

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Chutatape, O. ; Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore ; Li Li ; Qian Xiaodong

This paper presents a segmentation technique based on multiple threshold values determined by fuzzy logic and information entropy principle to extract alphanumeric characters from general scene images, and its parallel implementation in a cluster of personal computers in a local area network. In this approach, the scene images are segmented into various regions based on fuzzy-entropy thresholding method which allows each local threshold to be detected and used for segmentation. A coarse searching technique is then implemented to locate potential character regions, followed by a rule-based character detecting technique to accurately extract characters. This searching step is executed in parallel at each computer for each selected threshold so as to collect all possible character-candidate regions. These results are then combined and x-y projection/profile is further applied to search for any missing characters. The multithreshold segmentation technique offers a simple, robust system that is capable of extracting alphanumeric characters from various scene images under nonuniform illuminating condition and for a variety of car number plates whereas the execution speed of the system is increased with parallel computing and dynamic load balancing technique

Published in:

Industrial Electronics Society, 1999. IECON '99 Proceedings. The 25th Annual Conference of the IEEE  (Volume:2 )

Date of Conference:

1999