Image recognition apparatus and feature data registration method in image recognition apparatus

摘要

Provided is a technology of suppressing degradation of distinguishability from another object when new feature data is added to an already-registered object. An image recognition device includes a database in which pieces of feature data of plural objects are registered while divided into classes in each object, an identification unit that identifies an unknown object, and a feature data registration unit that registers the feature data in the database. The database can set plural classes to the identical object. In adding new feature data to a first object already registered in the database, the feature data registration unit sets a new class other than the existing class to the first object, and registers the new feature data in the new class, when a second object satisfying a predetermined similar condition with the new feature data exists in the database.