A projector includes a projector main body including an optical unit for generating an image light beam, and a projection optical device attached to a mounting part of the projector main body, and projecting the image light beam generated by the optical unit on a screen, a chassis of the projection optical device includes a camera attachment part to which a camera is attached, and an imaging range of the camera attached to the camera attachment part includes at least a part of a projection image projected by the projection optical device.

A control apparatus includes an acquiring unit configured to acquire a plurality of identification data indicating display performances regarding image qualities of a plurality of display apparatuses, and a generating unit configured to generate a first identification datum indicating a display performance with which all the display apparatuses are compatible using the plurality of identification data.

There is provided an information processing apparatus and method, and a projection imaging apparatus and an information processing method capable of suppressing an increase in processing amount of processing related to update of correction information used for geometric correction and the like, the information processing apparatus detecting, in regard to projection imaging apparatuses each having a projection unit that projects an image on a projection surface and an imaging unit that images the projection surface, a corresponding point between a pixel of the projection unit and a pixel of the imaging unit for a relation between one of the projection imaging apparatuses whose posture has changed and one of the projection imaging apparatuses whose posture has not changed, and estimating a relative posture of the projection imaging apparatus whose posture has changed with respect to the projection imaging apparatus whose posture has not changed.

A display control method includes outputting, by at least one video output device, M videos, M being an integer larger than or equal to 1, if M<N, displaying the M videos in each of M sub-areas by respectively assigning each of the M videos to each of the M sub-areas obtained by dividing a single large area in which an image is displayed by N display devices, N being an integer larger than or equal to 2, and if M=N, displaying each of the M videos by assigning each of the M videos to each of N display areas corresponding to the N display devices respectively.

A computer simulation may include a tabletop game in which multiple players each wearing a head-mounted display (HMD) view a tabletop projector housing with a different aspect of the game for each side of the housing. A projector assembly may be inside the housing. The housing may be a screen that unfolds into cube, and the projector projects light in all four screens so that everyone gets different perspective. A player may be enabled to switch between perspectives for different player's angles.

A passenger service unit is provided. The passenger service unit includes at least one projector configured to project an image onto one or more display surfaces, at least one sensor configured to indicate a current position of the one or more display surfaces, and a projector controller in communication with the at least one projector and the at least one sensor. The projector controller is programmed to receive a signal from the at least one sensor indicating a current position of a display surface and instruct the at least one projector to project at least one image onto the tray table based on the current position of the display surface.

A projector projects a first image onto a projection surface to thereby display a first projected image on the projection surface, acquires first imaging data obtained by capturing the first projected image, determines, based on the first imaging data, a type of a three-dimensional shape on the projection surface, projects a second image including a plurality of points onto the projection surface to thereby display a second projected image on the projection surface, acquires second imaging data obtained by capturing the second projected image, specifies, based on the second imaging data and the type of the three-dimensional shape on the projection surface, positions of the respective plurality of points on the projection surface, generates, based on the positions of the respective plurality of points, and correction data for correcting distortion of an image projected onto the projection surface, corrects, based on the correction data, image data input to the projector.

A first image including a first line segment is projected onto a projection surface to acquire first imaging data of a first projected image. A second image including a first mark and a second mark overlapping the first line segment is projected onto the projection surface to acquire second imaging data of a second projected image. Based on a positional relation between a third mark and a fourth mark located on a second line segment corresponding to the first line segment and a positional relation between the first mark and the second mark located on the first line segment, relation data that associates the first mark and the third mark and associates the second mark and the fourth mark is generated. Correction data is generated based on the relation data. Image data is corrected based on the correction data. A corrected image is projected onto the projection surface.

The tiling screen (screen) is provided with a plurality of projection areas, and includes an overlapping area where end parts of the projection areas overlap each other, wherein when setting a number of times of overlapping to one in the overlapping area, reflectance in the overlapping area where the number of times is one is configured to be lower than reflectance in an area where the projection areas fail to overlap each other, and when setting the number of times of overlapping to N (N≥2) in the overlapping area, the reflectance in the overlapping area where the number of times is N is configured to be lower than the reflectance in the overlapping area where the number of times of overlapping is a largest number of the numbers of times smaller than N.

A projection apparatus projects a first image projected by a first projection portion and a second image projected by a second projection portion in a partially overlapping manner, and includes: a processor configured to perform a projection control on a first region of the first image set as an overlapping region with the second image and a second region of the second image set as an overlapping region with the first image, and the processor is configured to: in a case where a first operation of providing an instruction to change the first region and the second region is received, perform at least one of: a control of projecting the first image; or a control of projecting the second image; and in a case where a second operation of providing an instruction to confirm the first region is received, finish the control corresponding to the first operation.