US 12,464,101 B2
Projection image adjustment method, information processing apparatus, and non-transitory computer-readable storage medium storing program
Takuo Yoneyama, Azumino (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Mar. 29, 2024, as Appl. No. 18/621,253.
Claims priority of application No. 2023-054897 (JP), filed on Mar. 30, 2023.
Prior Publication US 2024/0333894 A1, Oct. 3, 2024
Int. Cl. H04N 19/31 (2014.01); H04N 9/31 (2006.01)
CPC H04N 9/3185 (2013.01) [H04N 9/3147 (2013.01); H04N 9/3194 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A projection image adjustment method comprising:
acquiring a first captured image from a camera by causing the camera to capture an image of a projection surface with a first image projected by a first projector at a first position on the projection surface and a second image projected by a second projector at a second position on the projection surface and at least partially overlapping with the first image;
acquiring, based on the first captured image, a first amount of shift along a first axis between the first image and the second image, the first axis being a coordinate axis of a global coordinate system, and a second amount of shift along a second axis between the first image and the second image, the second axis being perpendicular to the first axis;
causing the first projector to move the first image from the first position to a third position separate therefrom by a first distance in a first direction corresponding to a direction toward one end of the first axis when the first and second amounts of shift satisfy a first condition;
acquiring a second captured image from the camera by causing the camera to capture an image of the projection surface with the first image projected by the first projector at the third position and the second image projected by the second projector at the second position;
acquiring, based on the second captured image, a third amount of shift along the first axis between the first image and the second image and a fourth amount of shift along the second axis between the first image and the second image; and
causing the first projector to move the first image from the third position to a fourth position separate therefrom by a second distance in a second direction that is an opposite direction of the first direction when the third and fourth amounts of shift satisfy a second condition and the third amount of shift is greater than the first amount of shift.