Patent ID: 9262672
Filing Date: 2016-02-16
CPC Classification: G06K

Claim Text:
1. A pattern recognition apparatus comprising: a similarity set generation unit configured to generate respective similarity sets for a plurality of objects by calculating a similarity of a local feature of each local area in input image data and a local feature of a corresponding local area in each image registered in a dictionary and collecting calculated similarities with respect to each object as a similarity set, where one or more images have been registered for each object in the dictionary; a determination unit configured to determine a first number of higher-ranked similarities to be integrated for each object based on a second number of registered images for that object in the dictionary in accordance with a predetermined relationship between the first number and the second number, where the greater the second number is, the greater the first number is; an integrated similarity calculation unit configured to calculate an integrated similarity for each object by sorting a plurality of similarities in the similarity set for that object and integrating the first number of higher-ranked similarities in the similarity sets for that object; and an identification unit configured to identify an object corresponding to the input image data based on the integrated similarity for each object calculated by said integrated similarity calculation unit.