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Feature extraction for online handwritten characters using Delaunay triangulation
Zeng, Wei; Meng, XiangXu; Yang, ChengLei; Huang, Lei
2006-10-01
发表期刊COMPUTERS & GRAPHICS-UK
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:6[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
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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.
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