Patent ID: 6141443
Filing Date: 2000-10-31
Classification: G06K

Abstract:
A character recognition dictionary production apparatus, comprising:an image inputting means for receiving a plurality of source character images for each character code;a feature value extracting unit for extracting a set of feature values from each source character image received by the image inputting means;a clustering means for classifying the sets of feature values received by the image inputting means into clusters for each character code;a classifying dictionary registering means for obtaining a set of average cluster feature values for each cluster from the feature values extracted by the feature value extracting unit, and registering the sets of average cluster feature values as classifying data related to character codes in the classifying dictionary registering means itself;a distance computing means for computing distances between two sets of average cluster feature values registered in the classifying dictionary registering means; andan identifying dictionary registering means for extracting a set of clusters, belonging to different character codes, with the distance in between computed by the distance computing means smaller than a predetermined value, selecting one or more elements with highest identification level from the average cluster feature values for each set of clusters, and registering the elements and related identifiers of the clusters as identifying data in the identifying dictionary registering means itself.