Patent ID: 7379597
Filing Date: 2008-05-27
Classification: G06K

Abstract:
1. A computer-readable medium having computer-executable instructions, which when executed perform steps, comprising: receiving a chirograph; providing the chirograph to a primary recognizer and receiving a shape index therefrom; determining whether one of a plurality of secondary recognizers is associated with the shape index, and if so, selecting that secondary recognizer as a selected secondary recognizer, wherein the plurality of secondary recognizers comprises CART trees that have been trained by providing a first training set comprising a plurality of chirographs and actual code points for each chirograph, applying a plurality of questions to the chirograph, determining a best set of questions in a best order, removing questions determined to be ineffective, and removing CART trees that do not improve the recognition of the characters compared to the primary recognizer; and passing the chirograph to the selected secondary recognizer and returning a code point from the secondary recognizer.