| 摘要 |
PROBLEM TO BE SOLVED: To provide a pattern recognizing device more improved in accuracy in comparison with a conventional recognizing device for performing rough classification on the basis of main component analysis or the like. SOLUTION: After an m-dimensional reference pattern and an m-dimensional feature are extracted from an n-dimensional (m<n) reference pattern inside a dictionary 104 for detailed identification and an n-dimensional feature extracted from a learning pattern on the basis of a present feature selection dictionary 106, a reference pattern in a shortest distance to the m-dimensional feature is extracted as a reference pattern A out of the m-dimensional reference patterns belonging to the same category as the learning pattern, a reference pattern in a shortest distance to the m-dimensional feature is extracted as a reference pattern B out of m-dimensional reference patterns belonging to a category different from the learning pattern, and a feature selection dictionary correcting part 108 is provided for correcting the feature selection dictionary 106 so that the distance between the m-dimensional feature and the reference pattern A can be more shortened and further the distance between the m- dimensional feature and the reference pattern B can be more extended.
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