Patent ID: 6865296
Filing Date: 2005-03-08
Classification: G06K

Abstract:
1. A method of pattern recognition, said method comprising the steps of: a first step for finding feature-extraction-matrix AF of pattern set A1 and feature-extraction-matrix BF of pattern set B1, said matrices AF, BF maximizing between-class scatter and minimizing within-class scatter with respect to training pattern sets A1, B1 respectively, which are sets of pair of patterns obtained from a same object but on different conditions; a second step for calculating feature-amount fB1i using the feature-extracting-matrix BF with respect to typical pattern B1i of respective classes “i” of the training pattern set B1; a third step for retaining a set {fB1i} of the feature amount fB1i and the matrices AF, BF in a referential database; and a fourth step for determining an element, among the feature amount fB1i retained in the referential database, most similar to a feature amount fA2j extracted from the matrix AF applied to input pattern A2j.