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DICTIONARY UPDATING SYSTEM FOR PERSON AUTHENTICATION, DICTIONARY UPDATING DEVICE FOR PERSON AUTHENTICATION, DICTIONARY UPDATING PROGRAM FOR PERSON AUTHENTICATION AND SYSTEM FOR PERSON AUTHENTICATION
DICTIONARY UPDATING SYSTEM FOR PERSON AUTHENTICATION, DICTIONARY UPDATING DEVICE FOR PERSON AUTHENTICATION, DICTIONARY UPDATING PROGRAM FOR PERSON AUTHENTICATION AND SYSTEM FOR PERSON AUTHENTICATION
PROBLEM TO BE SOLVED: To accurately update variation in dictionary information due to secular variation while variance exists in input state including condition of illumination, input direction and timing although a need exists to update biological information registered as dictionary information along with the secular variation which is mid-and-long term due to variation in aging and characteristics of a subject person in a system for mid-and-long term authentication.SOLUTION: A method for updating a dictionary for person authentication for storing biological information of a person who is a subject of recognition includes: an accumulation process for accumulating biological information queries accepted during a prescribed period to history accumulation means; a creation process for creating a degree of similarity for every pair of biological information by measuring the degree of similarity between accumulated biological information queries; and an update process for updating the dictionary for person authentication on the basis of the pair of biological information determined to have high similarity.
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