Feature extraction for online handwritten characters using Delaunay triangulation

CASIA OpenIR > 09年以前成果

	Feature extraction for online handwritten characters using Delaunay triangulation
	Zeng, Wei ; Meng, XiangXu ; Yang, ChengLei ; Huang, Lei
发表期刊	COMPUTERS & GRAPHICS-UK
	2006-10-01
卷号	30 期号:5 页码:779-786
文章类型	Article
摘要	We introduce a novel feature extraction scheme for online handwritten characters based on utilizing Delaunay triangles for describing each stroke segment. Central to the proposed approach is the idea of associating a unique topological structure with the handwritten shape using the Delaunay triangulation. This allows more 'meaningful' groups (i.e., triangles) to be chosen for representing global features, and makes full use of the rich temporal and topological characteristics of handwritten shapes. The Delaunay triangles used for feature extraction, called the Delaunay triangle descriptor, have good discrimination power since they are the only ones satisfying the properties of the Delaunay triangulation. A discrete HMM-based recognition system is used, as the test platform, and shows that the proposed representation can achieve good performance on the chosen data collection, improve recognition accuracy, elevate stability and robustness, and outperform other alternative feature combinations implemented for comparison. (c) 2006 Elsevier Ltd. All rights reserved.
关键词	Delaunay Triangulation Feature Extraction Online Handwritten Characters
WOS标题词	Science & Technology ; Technology
关键词[WOS]	RECOGNITION ; HMM
收录类别	SCI
语种	英语
WOS研究方向	Computer Science
WOS类目	Computer Science, Software Engineering
WOS记录号	WOS:000242334800010
引用统计	被引频次：8[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/173211/9380
专题	09年以前成果
作者单位	1.Chinese Acad Sci, Inst Comp Technol, Beijing 100080, Peoples R China 2.Shandong Univ, Sch Comp Sci & Technol, Jinan 250061, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Automat, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Zeng, Wei,Meng, XiangXu,Yang, ChengLei,et al. Feature extraction for online handwritten characters using Delaunay triangulation[J]. COMPUTERS & GRAPHICS-UK,2006,30(5):779-786.
APA	Zeng, Wei,Meng, XiangXu,Yang, ChengLei,&Huang, Lei.(2006).Feature extraction for online handwritten characters using Delaunay triangulation.COMPUTERS & GRAPHICS-UK,30(5),779-786.
MLA	Zeng, Wei,et al."Feature extraction for online handwritten characters using Delaunay triangulation".COMPUTERS & GRAPHICS-UK 30.5(2006):779-786.