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Frontiers of Computer Science

ISSN 2095-2228

ISSN 2095-2236(Online)

CN 10-1014/TP

Postal Subscription Code 80-970

2018 Impact Factor: 1.129

Front. Comput. Sci.    2014, Vol. 8 Issue (5) : 773-784    https://doi.org/10.1007/s11704-014-3207-6
RESEARCH ARTICLE
Comparative performance analysis of stroke correspondence search methods for stroke-order free online multi-stroke character recognition
Wenjie CAI(),Seiichi UCHIDA,Hiroaki SAKOE
Department of Advanced Information Technology, Kyushu University, Fukuoka-shi 819-0395, Japan
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Abstract

For stroke-order free online multi-stroke character recognition, stroke-to-stroke correspondence search between an input pattern and a reference pattern plays an important role to deal with the stroke-order variation. Although various methods of stroke correspondence have been proposed, no comparative study for clarifying the relative superiority of those methods has been done before. In this paper, we firstly review the approaches for solving the stroke-order variation problem. Then, five representative methods of stroke correspondence proposed by different groups, including cube search (CS), bipartite weighted matching (BWM), individual correspondence decision (ICD), stable marriage (SM), and deviation-expansion model (DE), are experimentally compared, mainly in regard of recognition accuracy and efficiency. The experimental results on an online Kanji character dataset, showed that 99.17%, 99.17%, 96.37%, 98.54%, and 96.59% were attained by CS, BWM, ICD, SM, and DE, respectively as their recognition rates. Extensive discussions are made on their relative superiorities and practicalities.

Keywords cube search      bipartite weighted matching      individual correspondence decision      stable marriage      deviationexpansion model     
Corresponding Author(s): Wenjie CAI   
Issue Date: 11 October 2014
 Cite this article:   
Wenjie CAI,Seiichi UCHIDA,Hiroaki SAKOE. Comparative performance analysis of stroke correspondence search methods for stroke-order free online multi-stroke character recognition[J]. Front. Comput. Sci., 2014, 8(5): 773-784.
 URL:  
https://academic.hep.com.cn/fcs/EN/10.1007/s11704-014-3207-6
https://academic.hep.com.cn/fcs/EN/Y2014/V8/I5/773
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