BACKGROUND

1. Field

The present invention relates to an identification device, a robot, an identification method, and a storage medium.

2. Related Art

A technique of identifying an individual is known. For example, Japanese Patent Application Laid-Open No. 2007-156974 discloses an identification device identifying an individual with high accuracy by integrating a face image and a voice. When specifically described, the identification device disclosed in Japanese Patent Application Laid-Open No. 2007-156974 determines a score α indicating the likelihood of being the person by the identification using a face image, determines a score β indicating the likelihood of being the person by the identification using a voice, and then compares the determined score α and score β with the corresponding threshold values to thereby identify the individual. Moreover, Japanese Patent Application Laid-Open No. 2007-156974 discloses varying the threshold value of the score α and the threshold value of the score β according to the brightness or a background noise.

SUMMARY

An identification device according to the present invention has a processor configured to carry out plural identification processing by which an individual is identified based on plural acquired data different from each other indicating the individual and, when the identification of the individual by one or more identification processing of the plural identification processing fails and the identification of the individual by one or more other identification processing of the plural identification processing succeeds, learn the at least one identification processing by which the identification of the individual fails.

