Systematic Multi-Path HMM Topology Design for Online Handwriting Recognition of East Asian Characters
Shi Han; Ming Chang; Yu Zou; Xinjian Chen; Dongmei Zhang
Document Analysis and Recognition, 2007. ICDAR 2007. Ninth International Conference on
Volume 2, Issue , 23-26 Sept. 2007 Page(s):604 - 608
Digital Object Identifier   10.1109/ICDAR.2007.4376986
Summary:This paper presents a systematic multi-path HMM topology design algorithm to better model online handwriting of East Asian characters. This data-driven algorithm solves three key problems in HMM topology design. First, HMM path number determination is formalized as a clustering problem using subsequence direction histogram vector (SDHV) as feature of both writing order and style. Second, curvature scale space-based (CSS-based) substroke segmentation is used to calculate the optimal state number and initial state parameters. Third, self-rotation restricted corner state and imaginary stroke state are designed to determine state connectivity and Gaussian mixture number in order to achieve better state alignment. Experiments on large character sets demonstrate both a significant relative error reduction rate and high recognition accuracy using the proposed algorithm.

» View citation and abstract

Log in by entering your IEEE Web Account Username and Password.

IEEE Communications Society members: If you subscribe to the IEEE Electronic Periodicals Package or IEEE Electronic Periodicals Package Plus, you must access your subscription at www.comsoc.org.

Check with your librarian, information professional, or system manager to determine if you need to log in. Please complete the online Technical Support Form if you need assistance.

Select the Purchase History link to access the document. You will have 5 Days after purchase to access the Full Text PDF. Please complete the online Technical Support Form if you need assistance.

• Search and access Abstract records free of charge
• Register for table of contents alerts
• Purchase Full Text PDF documents

» Learn more about subscription options or how to become an IEEE Member.