A character image restoration method for unconstrained handwritten Chinese character recognition
Shao, Yunxue1; Wang, Chunheng2; Xiao, Baihua2
2015-03-01
发表期刊INTERNATIONAL JOURNAL ON DOCUMENT ANALYSIS AND RECOGNITION
卷号18期号:1页码:73-86
文章类型Article
摘要Despite 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.
关键词Character Image Restoration Unconstrained Handwritten Chinese Character Recognition Similar Character Discrimination
WOS标题词Science & Technology ; Technology
关键词[WOS]FEATURE-EXTRACTION ; SHAPE NORMALIZATION ; GRADIENT FEATURE
收录类别SCI
语种英语
WOS研究方向Computer Science
WOS类目Computer Science, Artificial Intelligence
WOS记录号WOS:000350208300006
引用统计
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/8082
专题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
作者单位1.Inner Mongolia Univ, Coll Comp Sci, Hohhot 010021, Inner Mongolia, Peoples R China
2.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China
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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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