Image analysis – Pattern recognition – On-line recognition of handwritten characters
Patent
1994-09-23
1997-03-25
Boudreau, Leo
Image analysis
Pattern recognition
On-line recognition of handwritten characters
382202, G06K 900
Patent
active
056152833
ABSTRACT:
A pattern recognition device tracks the angular movements made by a pointing device such as a mouse in generating a pattern of lines. A pattern code is generated if the angular movements match those of a pattern code in a lookup table. The pattern matching for the shape is done without regard to size, is insensitive to expected variations in hand-drawn strokes, requires minimal computer processing and data storage, and can distinguish between identical patterns that differ only in the order in which their constituent line segments were drawn.
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Chin-Hwa Lee and Gim Pew Quek, "Partial Matching of Two Dimensional Shapes Using Random Coding", 1988, pp. 64-68, Proceedings of the 1988 Ninth International Conference on Pattern Recongnition.
Hong, Jiawei and Tan, Xiaonan, "A New Approach to Point Pattern Matching", 1988, pp. 82-84, Proceedings of the 1988 Ninth International Conference on Pattern Recongnition.
Boudreau Leo
Dagg David A.
Digital Equipment Corporation
Fisher Arthur W.
Maloney Denis G.
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