Patent ID: 8379983
Filing Date: 2013-02-19
Classification: G06K

Abstract:
1. A dictionary creating apparatus comprising: a feature-amount calculating unit that calculates amounts of feature of each category as a recognition item, based on training data for creating a pattern recognition dictionary; a distribution-profile calculating unit that calculates a distribution profile of a group of the amounts of feature of each category based on the amounts of feature of each category calculated by the feature-amount calculating unit; a distance calculating unit that calculates a distance between the distribution profiles of respective categories based on the distribution profile of the group of the amounts of feature of each category calculated by the distribution-profile calculating unit; a clustering-target determining unit that determines the distribution profiles as clustering targets based on the distance between the distribution profiles of respective categories calculated by the distance calculating unit; a typical-distribution-profile determining unit that determines a typical distribution profile that typifies the distribution profiles of the clustering targets determined by the clustering-target determining unit; a clustering unit that clusters the distribution profiles determined as the clustering targets by the clustering-target determining unit; an associating unit that associates the typical distribution profile determined by the typical-distribution-profile determining unit with the categories that are included as elements in the typical distribution profile after the clustering performed by the clustering unit; and a dictionary registering unit that resisters the typical distribution profile and the categories associated with each other by the associating unit, in a predetermined dictionary storage unit.