Normalization-cooperated gradient feature extraction for handwritten character recognition

CASIA OpenIR > 09年以前成果

	Normalization-cooperated gradient feature extraction for handwritten character recognition
	Liu, Cheng-Lin
发表期刊	IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE
	2007-08-01
卷号	29 期号:8 页码:1465-1469
文章类型	Article
摘要	The gradient direction histogram feature has shown superior performance in character recognition. To alleviate the effect of stroke direction distortion caused by shape normalization and provide higher recognition accuracies, we propose a new feature extraction approach, called normalization-cooperated gradient feature (NCGF) extraction, which maps the gradient direction elements of original image to direction planes without generating the normalized image and can be combined with various normalization methods. Experiments on handwritten Japanese and Chinese character databases show that, compared to normalization-based gradient feature, the NCGF reduces the recognition error rate by factors ranging from 8.63 percent to 14.97 percent with high confidence of significance when combined with pseudo-two-dimensional normalization.
关键词	Character Recognition Feature Extraction Normalization-cooperated Gradient Feature (Ncgf)
WOS标题词	Science & Technology ; Technology
关键词[WOS]	DIGIT RECOGNITION
收录类别	SCI
语种	英语
WOS研究方向	Computer Science ; Engineering
WOS类目	Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
WOS记录号	WOS:000247186500013
引用统计	被引频次：87[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/9507
专题	09年以前成果
作者单位	Chinese Acad Sci, Natl Lab Pattern Recognit, Inst Automat, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Liu, Cheng-Lin. Normalization-cooperated gradient feature extraction for handwritten character recognition[J]. IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE,2007,29(8):1465-1469.
APA	Liu, Cheng-Lin.(2007).Normalization-cooperated gradient feature extraction for handwritten character recognition.IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE,29(8),1465-1469.
MLA	Liu, Cheng-Lin."Normalization-cooperated gradient feature extraction for handwritten character recognition".IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE 29.8(2007):1465-1469.