Information processing apparatus, information processing method, and program

An information processing method, comprising:

• causing, when a user is unable to be identified by identification in a feature quantity space based on a registered feature quantity and an acquired feature quantity of the user, the acquired feature quantity of the user to be stored in a storage unit as an unidentifiable feature quantity;
• setting an additional registration feature quantity on a basis of a distribution of unidentifiable feature quantities in the feature quantity space;
• specifying a user corresponding to the additional registration feature quantity;
• and
• additionally registering the additional registration feature quantity as a feature quantity of the specified user.

A program causing a computer to execute:

• a step of causing, when a user is unable to be identified by identification in a feature quantity space based on a registered feature quantity and an acquired feature quantity of the user, the acquired feature quantity of the user to be stored in a storage unit as an unidentifiable feature quantity;
• a step of setting an additional registration feature quantity on a basis of a distribution of unidentifiable feature quantities in the feature quantity space;
• a step of specifying a user corresponding to the additional registration feature quantity;
• and
• a step of additionally registering the additional registration feature quantity as a feature quantity of the specified user.