Patent attributes
A projection image position adjustment method of applying position adjustment to, using two adjustment images, two projection images on a projection surface projected to have an overlay area by two of a plurality of projectors in a multi-projection display. The method includes: a first step of providing, to the two projectors, two adjustment image data respectively corresponding to the two adjustment images each showing a pattern of specific characteristics in the overlay area when the two adjustment images are projected with an appropriate positional relationship; a second step of calculating an evaluation value correlated to the characteristics based on image capture data that is derived by capturing an image of the projection surface with the two adjustment images projected thereon by the two projectors; and a third step of subjecting the two projection images to the position adjustment based on the evaluation values.
