IMAGE SEARCHING DEVICE, IMAGE SEARCHING METHOD, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To extract a scene in which a projection area has been indicated by a tangible entity.SOLUTION: An image searching device includes: a first determination part that determines the presence of absence of a change of a photographed image in a projection area of the image; a second determination part that determines, when the image has been changed in the projection area, the presence or absence of a change of an image on the outside part of the contour of the projection area adjacent to the part where the image has been changed; and a third determination part that determines, when the image has been changed on the outside part of the contour of the projection area adjacent to the part where the image has been changed, a photographed image indicating that the tangible entity has indicated the inside of the projection area.