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US 12,771,800 B2Granted
Image processing method, image processing system, and non-transitory computer-readable storage medium storing program
AssigneeSeiko Epson Corporation
InventorTakashi Nishimori
Life of this patent
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Abstract
An image processing method according to an aspect of the present disclosure includes acquiring a captured image containing a projection image projected onto a projection surface from an optical apparatus based on an image signal and a plurality of feature points located in a region outside a region where the projection image is displayed on the projection surface by capturing an image of the projection surface, and correcting color or luminance of the projection image based on the captured image.
Claims20
An image processing method comprising:
- acquiring a captured image containing a projection image projected onto a projection surface from an optical apparatus based on an image signal and a plurality of feature points located in a region outside a region where the projection image is displayed on the projection surface by capturing an image of the projection surface;
- and
- correcting color or luminance of the projection image based on detecting changes in positions of the feature points located in the region outside the region where the projection image is displayed, wherein a size of the projection image is smaller than a size of a largest image that the optical apparatus is configured to project onto the projection surface, the plurality of feature points are located in a region between a contour of the largest image and a contour of the projection image, and correcting color or luminance of the projection image includes determining, based on a position of a region corresponding to the projection image in the captured image, a range of correction data expressed by two-dimensional coordinates used to correct the color of the projection image, and correcting the color of the projection image by using the correction data that falls within the range.
An image processing system comprising:
- a processing apparatus programmed to execute
- acquiring a captured image containing a projection image projected onto a projection surface from an optical apparatus based on an image signal and a plurality of feature points located in a region outside a region where the projection image is displayed on the projection surface by capturing an image of the projection surface, and
- correcting color or luminance of the projection image based on detecting changes in positions of the feature points located in the region outside the region where the projection image is displayed, wherein a size of the projection image is smaller than a size of a largest image that the optical apparatus is configured to project onto the projection surface, the plurality of feature points are located in a region between a contour of the largest image and a contour of the projection image, and correcting color or luminance of the projection image includes determining, based on a position of a region corresponding to the projection image in the captured image, a range of correction data expressed by two-dimensional coordinates used to correct the color of the projection image, and correcting the color of the projection image by using the correction data that falls within the range.
A non-transitory computer-readable storage medium storing a program that causes a computer to
- acquire a captured image containing a projection image projected onto a projection surface from an optical apparatus based on an image signal and a plurality of feature points located in a region outside a region where the projection image is displayed on the projection surface by capturing an image of the projection surface, and
- correct color or luminance of the projection image based on detecting changes in positions of the feature points located in the region outside the region where the projection image is displayed, wherein a size of the projection image is smaller than a size of a largest image that the optical apparatus is configured to project onto the projection surface, the plurality of feature points are located in a region between a contour of the largest image and a contour of the projection image, and correcting color or luminance of the projection image includes determining, based on a position of a region corresponding to the projection image in the captured image, a range of correction data expressed by two-dimensional coordinates used to correct the color of the projection image, and correcting the color of the projection image by using the correction data that falls within the range.
Dependencies are inferred from the claim text.