Patent ID: 7671875

Claim:
An information processing method for displaying a mixed image obtained by combining an image of a physical space and an image of a virtual space, the information processing method comprising: a detecting step of detecting markers from a captured image of the physical space, the markers being placed in the physical space; an obtaining step of obtaining position information about the markers; a position/orientation calculating step of calculating a position and/or orientation of a viewpoint of the captured image based on image coordinates of the detected markers and the obtained position information about the detected markers; a highly accurate registration area calculating step of calculating highly accurate registration area information based on the obtained position information about the detected markers and a predetermined rule; a generating step of generating a virtual space image based on the position and orientation of the viewpoint and the highly accurate registration area information; and an image display step of displaying a mixed reality image obtained by combining the captured image and the virtual space image, wherein a highly accurate registration area indicated by the highly accurate registration area information is an area where the position and/or orientation of the viewpoint can be calculated with a high degree of accuracy by using the markers placed in the physical space, and the highly accurate registration area is in the physical space.