Patent ID: 6628811
Filing Date: 2003-09-30
Classification: G06K

Abstract:
A pattern recognizing method, comprising the steps of:obtaining a set of first teaching patterns of a plurality of teaching samples according to a first pattern obtaining process; obtaining a set of second teaching patterns of the teaching samples according to a second pattern obtaining process differing from the first pattern obtaining process; calculating a teaching pattern distribution from the set of first teaching patterns or the set of second teaching patterns; calculating a teaching distribution of a perturbation between the set of first teaching patterns and the set of second teaching patterns; calculating a feature extraction matrix, which minimizes an overlapping area between the teaching pattern distribution and the teaching perturbation distribution, from the teaching pattern distribution and the teaching perturbation distribution; obtaining a set of referential patterns of a plurality of referential samples according to the first pattern obtaining process; calculating a set of referential feature patterns of the referential samples from the set of referential patterns according to the feature extraction matrix, the set of referential feature patterns being independent of the first pattern obtaining process and the second pattern obtaining process; receiving an input pattern of an input sample according to the second pattern obtaining process; calculating an input feature pattern of the input sample from the input pattern according to the feature extraction matrix; selecting a specific referential feature pattern most similar to the input feature pattern from the set of referential feature patterns; and recognizing a specific referential sample corresponding to the specific referential feature pattern as the input sample.