Pattern recognition apparatus and method for making same

Details Pattern recognition apparatus and method for making same Pattern recognition apparatus and method for making same

G - Physics

06

K

354/141, 354/143

G06K 9/52 (2006.01) G10L 5/00 (1985.01) G06F 15/347 (1985.01)

Patent

CA 1195779

PATTERN RECOGNITION APAPRATUS AND METHOD FOR MAKING SAME ABSTRACT A pattern recognition apparatus is provided including a vector generating unit for generating an input vector representing the charac- teristics of an unknown input pattern, a dictionary unit which stores a plurality of reference vectors for each category, a similarlity calculat- ing unit which calculates a similarity between the input vector and a plurality of reference vectors for each category, a comparing unit which determines the category to which the input pattern belongs by comparing the similarities derived from the similarity calculating unit, and an additional dictionary generating unit which generates additional reference vectors for a particular need or application. The additional dictionary generating unit generates an additional reference vector obtained by subtracting the components of at least common reference vectors, in the specified category, from the input vector. The additional reference vector is stored in the storage area within the additional dictionary memory corresponding to a specified category.

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