Abstract: The computer stores the plurality of first positions in the image captured by the image pickup device and the second positions corresponding to the plurality of first positions in the graphic corresponding to the image as a relationship. The computer acquires a third position related to the object in the image, a positional relationship between a part of the plurality of first positions and the third position, and one of the relationships. A method specifies a position in a figure corresponding to a position in an image including generating a fourth position in the figure corresponding to the third position using parts or all. In a method, a part of the plurality of first positions is three first positions closest to the third position among the plurality of first positions. A method includes generating the fourth position using the sides of a triangle composed of the three first positions.

Abstract: The computer stores the plurality of first positions in the image captured by the image pickup device and the second positions corresponding to the plurality of first positions in the graphic corresponding to the image as a relationship. The computer acquires a third position related to the object in the image, a positional relationship between a part of the plurality of first positions and the third position, and one of the relationships. A method specifies a position in a figure corresponding to a position in an image including generating a fourth position in the figure corresponding to the third position using parts or all. In a method, a part of the plurality of first positions is three first positions closest to the third position among the plurality of first positions. A method includes generating the fourth position using the sides of a triangle composed of the three first positions.