Character recognition

Details Character recognition Character recognition

2006-11-21

2006-11-21

Bali, Vikkram (Department: 2624)

Image analysis

Pattern recognition

Unconstrained handwriting

C382S189000, C382S203000, C382S216000, C382S218000

Reexamination Certificate

active

07139430

ABSTRACT:
Character recognition includes detecting a union of characters, preprocessing the union of characters, comparing the preprocessed union of characters with one or more template symbols, and applying a decision rule to either reject a template symbol or decide that the template symbol is included in the union of characters. Such preprocessing involves representing the union of characters as one or more curves, and parameterizing the curve(s); and, regarding various classes of transformation, forming one or more shapes for the curve(s). The comparing operation involves forming one or more geometric proximity measures, and determining for every shape the values of those measures between the shape and correspondingly determined shapes for the template symbols. Applying a decision rule involves selecting one or more template symbols in consideration of the values.

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