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
Source PublicationCOMPUTERS & GRAPHICS-UK
2006-10-01
Volume30Issue:5Pages:779-786
SubtypeArticle
AbstractWe 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.
KeywordDelaunay Triangulation Feature Extraction Online Handwritten Characters
WOS HeadingsScience & Technology ; Technology
WOS KeywordRECOGNITION ; HMM
Indexed BySCI
Language英语
WOS Research AreaComputer Science
WOS SubjectComputer Science, Software Engineering
WOS IDWOS:000242334800010
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/9380
Collection09年以前成果
Affiliation1.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
Recommended Citation
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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