2007 IEEE International Conference on Image Processing - San Antonio, Texas, U.S.A. - September 16-19, 2007

Technical Program

Paper Detail

Paper:TP-P4.6
Session:Image and Video Segmentation V
Time:Tuesday, September 18, 14:30 - 17:10
Presentation: Poster
Title: JOINT SEGMENTATION AND RECOGNITION OF LICENSE PLATE CHARACTERS
Authors: Xin Fan; Oklahoma State University 
 Guoliang Fan; Oklahoma State University 
 Dequn Liang; Dalian Maritime University 
Abstract: The segmentation and recognition modules are usually implemented sequentially in most traditional automatic license recognition (LPR) systems. In this work, we integrate segmentation and recognition into a Markov network, where bidirectional constraints between segmentation and recognition are exploited for LPR. In addition, both low-level structural attributes and compositional semantics of license plates are incorporated in a probabilistic way. A belief propagation (BP)algorithm is used for statistical inference that is able to separate and recognize license characters simultaneously. Experiments on Chinese license plates show that the proposed approach work well even when connected and distorted characters present.



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