INFORMATION PROCESSING DEVICES AND METHODS FACILITATING FACE-ID-BASED USER LOGIN

An information processing device includes: an image acquirer acquiring a shot image of a user; a registered user information holder holding face identification data of a registered user; a face authentication carrying out authentication of a face image in the shot image by using the face identification data held in the registered user information holder; an information processing section executing information processing on a basis of an authentication result by the face authentication section; a face identification data registration section updating the face identification data on a basis of a face image extracted from the shot image; and a provisionally-registered data holder temporarily holding data relating to the face image when the face image satisfies a predetermined condition. The face identification data registration section determines whether or not to update the face identification data on the basis of the face image by evaluating the data.