A character image restoration method for unconstrained handwritten Chinese character recognition
Shao, Yunxue1; Wang, Chunheng2; Xiao, Baihua2
Source PublicationINTERNATIONAL JOURNAL ON DOCUMENT ANALYSIS AND RECOGNITION
2015-03-01
Volume18Issue:1Pages:73-86
SubtypeArticle
AbstractDespite the success of methods on constrained handwriting databases, recognition of unconstrained handwritten Chinese characters remains a big challenge. One difficulty for recognizing unconstrained handwritting is that some connected strokes are involved or some strokes are omitted. In this paper, a character image restoration method is proposed for unconstrained handwritten Chinese character recognition. In this method, the observed character image is modeled as the combination of the ideal character image with two types of noise images: the omitted stroke noise image and the added stroke noise image. To preserve the original gradient features, restoration is done on the gradient features. The estimated features are then used to discriminate similar characters. To show the effectiveness of the proposed method, we extend some state-of-the-art classifiers based on the estimated features. Experimental results show that the extended classifiers outperform the original state-of-the-art classifiers. This demonstrates that the estimated features are useful for further improving the recognition rate.
KeywordCharacter Image Restoration Unconstrained Handwritten Chinese Character Recognition Similar Character Discrimination
WOS HeadingsScience & Technology ; Technology
WOS KeywordFEATURE-EXTRACTION ; SHAPE NORMALIZATION ; GRADIENT FEATURE
Indexed BySCI
Language英语
WOS Research AreaComputer Science
WOS SubjectComputer Science, Artificial Intelligence
WOS IDWOS:000350208300006
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Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/8082
Collection复杂系统管理与控制国家重点实验室_影像分析与机器视觉
Affiliation1.Inner Mongolia Univ, Coll Comp Sci, Hohhot 010021, Inner Mongolia, Peoples R China
2.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Shao, Yunxue,Wang, Chunheng,Xiao, Baihua. A character image restoration method for unconstrained handwritten Chinese character recognition[J]. INTERNATIONAL JOURNAL ON DOCUMENT ANALYSIS AND RECOGNITION,2015,18(1):73-86.
APA Shao, Yunxue,Wang, Chunheng,&Xiao, Baihua.(2015).A character image restoration method for unconstrained handwritten Chinese character recognition.INTERNATIONAL JOURNAL ON DOCUMENT ANALYSIS AND RECOGNITION,18(1),73-86.
MLA Shao, Yunxue,et al."A character image restoration method for unconstrained handwritten Chinese character recognition".INTERNATIONAL JOURNAL ON DOCUMENT ANALYSIS AND RECOGNITION 18.1(2015):73-86.
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