System, device and method for authentication with use of information code

An authentication device for authenticating a user who holds an information code thereover, facial feature points extracted from a facial image of the user, comprising:

• an imaging unit;
• a determination unit configured to determine whether or not a facial recognizable state is provided where a user's face is imaged recognizably by the imaging unit;
• an extraction unit configured to extract facial feature points from an image of the user's face imaged by the imaging unit, after the determination unit has determined the facial recognizable state;
• a reading unit configured to read information indicating the facial feature points recorded in the information code, from an image provided by the imaging unit which images the information code;
• a matching unit configured to perform matching between the facial feature points extracted by the extraction unit and the facial feature points read by the reading unit;
• and
• an authentication unit configured to authenticate the user based on matching results performed by the matching unit.

An authentication method for authenticating a user who holds an information code thereover, facial feature points extracted from a facial image of the user, the authentication method comprising:

• an imaging step imaging a face of the user by an imaging unit;
• a determination step determining whether or not a facial recognizable state is provided where the user's face is imaged recognizably in the imaging step;
• an extraction step extracting facial feature points from an image of the user's face imaged by the imaging unit, after the determination step has determined the facial recognizable state;
• a reading step reading information indicating the facial feature points recorded in the information code, from an image provided by the imaging unit which images the information code;
• a matching step performing matching between the facial feature points extracted in the extraction step and the facial feature points read in the reading step;
• and
• an authentication step authenticating the user based on matching results performed in the matching step.

A non-transitory computer readable recording medium in which a program for authenticating a user is readably recorded in advance so as to enable a computer to read the program when the user holds an information code holds, facial feature points extracted a facial image of the user, the computer read the program from the recording medium being entitled to execute the program to provide functionality steps of:

• a determination step determining whether or not a facial recognizable state is provided where a face of the user has been imaged recognizably by an imaging unit;
• an extraction step extracting facial feature points from an image of the user's face imaged by the imaging unit, after the determination step has determined the facial recognizable state;
• a reading step reading information indicating the facial feature points recorded in the information code, from an image provided by the imaging unit which images the information code;
• a matching step performing matching between the facial feature points extracted in the extraction step and the facial feature points read in the reading step;
• and
• an authentication step authenticating the user based on matching results performed in the matching step.