Information generation method, information generation system, and non-transitory computer-readable storage medium storing program

An information generation system comprising:

• a display device;
• and
• at least one processor which executes
• obtaining a first image projected from a projector, a second image obtained by imaging, from a first imaging position, a projection target in a state in which the first image is projected on the projection target, and a third image obtained by imaging the projection target from a second imaging position different from the first imaging position,
• identifying a first correspondence relationship between a first coordinate system representing a position on a projection image projected by the projector, and a second coordinate system representing a position on a taken image taken from the first imaging position based on the first image and the second image,
• identifying a second correspondence relationship between the first coordinate system and a third coordinate system representing a position on a taken image taken from the second imaging position based on the first image and the third image,
• making the display device display the taken image of the projection target from the first imaging position,
• receiving an operation which designates a first display area representing an arrangement destination in the second coordinate system of a projection object projected on the projection target from the projector, and
• generating transformation information configured to transform the first display area designated by the operation of designating the first display area into a second display area representing an arrangement destination of the projection object in the third coordinate system based on the first correspondence relationship and the second correspondence relationship.

A non-transitory computer-readable storage medium storing a program for making a computer execute a method comprising:

• obtaining a first image projected from a projector, a second image obtained by imaging, from a first imaging position, a projection target in a state in which the first image is projected on the projection target, and a third image obtained by imaging the projection target from a second imaging position different from the first imaging position;
• identifying a first correspondence relationship between a first coordinate system representing a position on a projection image projected by the projector, and a second coordinate system representing a position on a taken image taken from the first imaging position based on the first image and the second image;
• identifying a second correspondence relationship between the first coordinate system and a third coordinate system representing a position on a taken image taken from the second imaging position based on the first image and the third image;
• making a display device display the taken image of the projection target from the first imaging position;
• receiving an operation which designates a first display area representing an arrangement destination in the second coordinate system of a projection object projected on the projection target from the projector;
• and
• generating transformation information configured to transform the first display area designated by the operation of designating the first display area into a second display area representing an arrangement destination of the projection object in the third coordinate system based on the first correspondence relationship and the second correspondence relationship.