Information processing device, information processing system, information processing method and program

An information processing method, comprising:

• acquiring a photographed image photographed by a camera capable of photographing a target image including predetermined information;
• referring to a storage that stores the target image photographed in the past and the information extracted from the target image in the past, in association with each other;
• determining whether the target image photographed in the past has been captured in the photographed image;
• and
• executing, when the target image photographed in the past has been captured in the photographed image, predetermined processing based on the information associated with the target image.

A non-transitory computer-readable information storage medium for storing a program for causing a computer to:

• acquire a photographed image photographed by a camera capable of photographing a target image including predetermined information;
• refer to a storage that stores the target image photographed in the past and the information extracted from the target image in the past, in association with each other;
• determine whether the target image photographed in the past has been captured in the photographed image;
• and
• execute, when the target image photographed in the past has been captured in the photographed image, predetermined processing based on the information associated with the target image.