US Patent 7903877 Radical-based HMM modeling for handwritten East Asian characters
Patent 7903877 was granted and assigned to Microsoft on March, 2011 by the United States Patent and Trademark Office.
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Exemplary methods, systems, and computer-readable media for developing, training and/or using models for online handwriting recognition of characters are described. An exemplary method for building a trainable radical-based HMM for use in character recognition includes defining radical nodes, where a radical node represents a structural element of an character, and defining connection nodes, where a connection node represents a spatial relationship between two or more radicals. Such a method may include determining a number of paths in the radical-based HMM using subsequence direction histogram vector (SDHV) clustering and determining a number of states in the radical-based HMM using curvature scale space-based (CSS) corner detection.
US Patent 07903877 Radical-based HMM modeling for handwritten East Asian characters US Patent 7903877 Radical-based HMM modeling for handwritten East Asian characters
US Patent 07903877 Radical-based HMM modeling for handwritten East Asian characters
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