A hidden Markov model-based character extraction method

被引:16
作者
Huang, Songtao [1 ]
Ahmadi, Majid [1 ]
Sid-Ahmed, M. A. [1 ]
机构
[1] Univ Windsor, Windsor, ON N9B 3P4, Canada
关键词
binarization; thresholding; HMM; OCR; stroke;
D O I
10.1016/j.patcog.2008.03.004
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
In this paper a hidden Markov model (HMM)-based binarization algorithm is presented. This algorithm performs well for images with nonuniform background. To test the usefullness of the proposed technique some images of composite documents of printed characters were used. These characters were extracted through the proposed binarization algorithms and used in a commercial OCR. A comparative study of various binarization techniques is also presented. Crown Copyright (c) 2008 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:2890 / 2900
页数:11
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