Online and offline handwritten Chinese character recognition: A comprehensive study and new benchmark
Zhang, Xu-Yao1; Bengio, Yoshua2; Liu, Cheng-Lin1,3; Xu-Yao Zhang
2017
发表期刊PATTERN RECOGNITION
卷号61期号:61页码:348-360
文章类型Article
摘要Recent deep learning based methods have achieved the state-of-the-art performance for handwritten Chinese character recognition (HCCR) by learning discriminative representations directly from raw data. Nevertheless, we believe that the long-and-well investigated domain-specific knowledge should still help to boost the performance of HCCR. By integrating the traditional normalization-cooperated direction-decomposed feature map (directMap) with the deep convolutional neural network (convNet), we are able to obtain new highest accuracies for both online and offline HCCR on the ICDAR-2013 competition database. With this new framework, we can eliminate the needs for data augmentation and model ensemble, which are widely used in other systems to achieve their best results. This makes our framework to be efficient and effective for both training and testing. Furthermore, although directMap+ convNet can achieve the best results and surpass human-level performance, we show that writer adaptation in this case is still effective. A new adaptation layer is proposed to reduce the mismatch between training and test data on a particular source layer. The adaptation process can be efficiently and effectively implemented in an unsupervised manner. By adding the adaptation layer into the pre-trained convNet, it can adapt to the new handwriting styles of particular writers, and the recognition accuracy can be further improved consistently and significantly. This paper gives an overview and comparison of recent deep learning based approaches for HCCR, and also sets new benchmarks for both online and offline HCCR. (C) 2016 Elsevier Ltd. All rights reserved.
关键词Handwriting Recognition Chinese Characters Online Offline Directional Feature Map Convolutional Neural Network Adaptation
WOS标题词Science & Technology ; Technology
DOI10.1016/j.patcog.2016.08.005
关键词[WOS]OF-THE-ART ; QUADRATIC DISCRIMINANT FUNCTION ; DOCUMENT RECOGNITION ; FEATURE-EXTRACTION ; NEURAL-NETWORKS ; DIMENSIONALITY ; SEGMENTATION ; CLASSIFIERS ; ADAPTATION ; DATABASES
收录类别SCI
语种英语
项目资助者National Basic Research Program of China (973 Program)(2012CB316302) ; National Natural Science Foundation of China (NSFC)(61403380) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDA06040102 ; XDB02060009)
WOS研究方向Computer Science ; Engineering
WOS类目Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
WOS记录号WOS:000385899400027
引用统计
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/12468
专题模式识别国家重点实验室_模式分析与学习
通讯作者Xu-Yao Zhang
作者单位1.Chinese Acad Sci, Inst Automat, NLPR, Beijing, Peoples R China
2.Univ Montreal, MILA, Montreal, PQ H3C 3J7, Canada
3.CAS Ctr Excellence Brain Sci & Intelligence Techn, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Xu-Yao,Bengio, Yoshua,Liu, Cheng-Lin,et al. Online and offline handwritten Chinese character recognition: A comprehensive study and new benchmark[J]. PATTERN RECOGNITION,2017,61(61):348-360.
APA Zhang, Xu-Yao,Bengio, Yoshua,Liu, Cheng-Lin,&Xu-Yao Zhang.(2017).Online and offline handwritten Chinese character recognition: A comprehensive study and new benchmark.PATTERN RECOGNITION,61(61),348-360.
MLA Zhang, Xu-Yao,et al."Online and offline handwritten Chinese character recognition: A comprehensive study and new benchmark".PATTERN RECOGNITION 61.61(2017):348-360.
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