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US 9,961,309 B2Granted
Image processing apparatus, image processing method, and projection apparatus
AssigneeCanon Kabushiki Kaisha
InventorMotohisa Ito
Life of this patent
Estimating the term…
Abstract
A projected image including at least an image of an overlapping region, on which a first video and a second video are superimposed, is obtained. A correction value for each unit region is determined based on the projected image and an image of a corresponding region in the first video. The corresponding region corresponds to the overlapping region, and the unit region is divided from the overlapping region. Projection-position adjustment based on the correction value is applied to the first video in each unit region.
Claims22
An image processing apparatus comprising:
- a hardware processor;
- and
- a memory which stores instructions to be executed by the hardware processor, wherein in accordance with the instructions executed by the hardware processor, the image processing apparatus performs:
- acquiring a captured image including at least an image of an overlapping region in a projection surface on which a first projected image projected by a first projection-type display apparatus and a second projected image projected by a second projection-type display apparatus are being displayed with an overlap;
- obtaining, based on the captured image acquired in the acquiring, information of a positional difference between the first projected image projected by the first projection-type display apparatus and the second projected image projected by the second projection-type display apparatus in each of a plurality of partial regions in the overlapping region;
- determining, based on the information obtained in the obtaining, a plurality of correction values for correcting positional differences between the first projected image projected by the first projection-type display apparatus and the second projected image projected by the second projection-type display apparatus in the plurality of partial regions in the overlapping region;
- and
- correcting, by using the plurality of correction values determined in the determining, the positional differences between the first projected image projected by the first projection-type display apparatus and the second projected image projected by the second projection-type display apparatus in the plurality of partial regions in the overlapping region.
5 more elements
An image processing method of performing projection-position correction in a superimposed projection of a plurality of videos, the method comprising:
- using a processor to perform:
- acquiring a captured image including at least an image of an overlapping region in a projection surface on which a first projected image projected by a first projection-type display apparatus and a second projected image projected by a second projection-type display apparatus are being displayed with an overlap;
- obtaining, based on the captured image acquired in the acquiring, information of a positional difference between the first projected image projected by the first projection-type display apparatus and the second projected image projected by the second projection-type display apparatus in each of a plurality of partial regions in the overlapping region;
- determining, based on the information obtained in the obtaining, a plurality of correction values for correcting positional differences between the first projected image projected by the first projection-type display apparatus and the second projected image projected by the second projection-type display apparatus in the plurality of partial regions in the overlapping region;
- and
- correcting, by using the plurality of correction values determined in the determining, the positional differences between the first projected image projected by the first projection-type display apparatus and the second projected image projected by the second projection-type display apparatus in the plurality of partial regions in the overlapping region.
3 more elements
A non-transitory computer readable medium storing a computer-executable program for causing a computer to perform an image processing method of performing projection-position correction in a superimposed projection of a plurality of videos, the method comprising:
- acquiring a captured image including at least an image of an overlapping region in a projection surface on which a first projected image projected by a first projection-type display apparatus and a second projected image projected by a second projection-type display apparatus are being displayed with an overlap;
- obtaining, based on the captured image acquired in the acquiring, information of a positional difference between the first projected image projected by the first projection-type display apparatus and the second projected image projected by the second projection-type display apparatus in each of a plurality of partial regions in the overlapping region;
- determining, based on the information obtained in the obtaining, a plurality of correction values for correcting positional differences between the first projected image projected by the first projection-type display apparatus and the second projected image projected by the second projection-type display apparatus in the overlapping region;
- and
- correcting, by using the plurality of correction values determined in the determining, the positional differences between the first projected image projected by the first projection-type display apparatus and the second projected image projected by the second projection-type display apparatus in the plurality of partial regions in the overlapping region.
2 more elements
Dependencies are inferred from the claim text.