Image display device and image display method

An image display device, comprising:

• a first acquisition module configured to acquire a taken image which is taken with a camera and which includes an optical recognition code representing identification information by forming a plurality of elements in a shape of a line;
• a second acquisition module configured to acquire the identification information represented by the optical recognition code by reading the optical recognition code included in the taken image;
• a third acquisition module configured to acquire a three-dimensional object image corresponding to the identification information;
• an extraction module configured to extract positions of elements located at both ends of the optical recognition code formed in the shape of the line on the taken image;
• a first calculation module configured to calculate an orientation of the optical recognition code on the taken image, based on the extracted positions of the elements located at the both ends of the optical recognition code;
• a detection module which detects an inclination of the camera;
• a second calculation module configured to calculate a relative position of the camera to the optical recognition code, based on the detected inclination of the camera;
• a generation module configured to generate a display image obtained by changing an orientation of the acquired three-dimensional object image, based on the orientation of the optical recognition code on the taken image and the relative position of the camera;
• and
• a display processing module configured to superpose and display the generated display image on the taken image.

A method of displaying an image comprising:

• acquiring a taken image which is taken with a camera and which includes an optical recognition code representing identification information by forming a plurality of elements in a shape of a line;
• and
• superposing and displaying a three-dimensional object image corresponding to the identification information represented by the optical recognition code included in the acquired taken image, on the taken image,
• an orientation of the three-dimensional object image superposed and displayed on the taken image being determined based on an orientation of the optical recognition code on the taken image and an inclination of the camera.