An electronic apparatus includes: a memory, a communication interface comprising communication circuitry configured to communicate with a first external device and a second external device, a projection part configured to output an image to a projection surface, and a processor configured to: receive first data including a first image from the first external device, receive second data including a second image from the second external device, acquire first position information of the first external device and second position information of the second external device, acquire a projection image including the first image and the second image based on the first position information and the second position information, and control the projection part to output the projection image.

A head-mounted device includes a first light field camera, a second light field camera, a first light field display, a second light field display and a supporting structure. Each of the first light field camera and the second light field camera includes, in order from an object side to an image side, a lens group, a collimator and an image sensor. Each of the lens groups includes a plurality of lens units. The lens units are arranged in a two-dimensional lens array, and each of the lens units includes a lens container and a plurality of lens elements. A first engaging structure is disposed between at least two adjacent lens elements of the lens elements.

An angular image of a scene may be displayed using a light field display. The light field display may comprise a plurality of projection units. Each of the projections units may comprise an imaging system and an optical system. The imaging system may illuminate pixels of a planar image of the scene. Light corresponding to each of the pixels may be directed towards the optical system. The optical system may comprise first and second lenses for redirecting each light beam corresponding to a pixel in different directions. In some embodiments the first and second lenses form a globe lens. A diffusion system may conceal the optical systems. Additionally, or alternatively, the diffusion system may produce a uniform distribution of light at a plurality of different viewing angles.

It is an objective of the invention of the present application to provide an image display apparatus capable of reducing a change in a display state of a virtual image that depends on a change in a viewpoint position. An image display apparatus according to an embodiment of the present technology includes an emission unit, a diffractive optical element, and an emission control unit. The emission unit emits image light of a target image. The diffractive optical element includes an incident surface and an emission surface, diffracts the image light entering the incident surface, emits the image light from the emission surface, and displays a virtual image that is the target image. The emission control unit controls emission of the image light by the emission unit by using image data generated in accordance with a change in a display state of the virtual image that depends on a change in a viewpoint position.

A display method includes, determining a first target value by correcting a first luminance value representing luminance at a first position in a first image based on a second luminance value representing luminance at a second position in the first image, displaying, by the display apparatus, on the display surface a first corrected image generated by correcting the first image in such a way that a luminance at the first position in the first image becomes the first target value, displaying, by the display apparatus, on the display surface a third corrected image generated by using a changed first target value obtained by changing the first target value based on a second target value based on a fourth luminance value representing luminance at a fourth position in the second image, when the second target value is smaller than the first target value.

An adjustment method includes the steps of displaying, by a first display device, a first image used to help an input operation for performing an adjustment of a second display device different from the first display device, displaying, by the second display device, the first image and a second image in which a result of the adjustment is reflected, and outputting an adjustment parameter used to perform the adjustment to the second display device based on the input operation.

A display method includes projecting, by a projector on a first projection surface located at a first distance from the projector, a first image which represents a size of a second image to be projected on a second projection surface by the projector, the second projection surface being located at a second distance, different from the first distance, from the projector.

A system and method for the projection of virtual 3-D images onto a surface with perspective shifting viewing capability including: a source of data for at least two different paired left-right view sets of one subject, an image reflecting surface, and a projector capable of simultaneously projecting pairs of left-right view sets, and capable of changing projected left-right view sets of images from a first set to a second set to create a stereopsis effect in which content of a complete projected image appears to move in perspective.

A projection system includes three or more projectors. Each of the projectors includes a projection section that projects image light to form a projection image on a screen. The projectors are so arranged that the three or more projection images projected by the projectors form a tiled image. The projection image projected by any of the projectors and the projection image projected by an adjacent projector form an overlapping area where the projection images overlap with each other, and one of the overlapping areas differs from the other overlapping areas in terms of size.

A convertible panel includes a number of sub-panels which are movable between a first position in which the panels extend in the same plane to define a unified panel and a configuration in which one or more of the panels are moved into other planes which allow them to form steps. Multiple of the rotated panels may form a sequence of steps, e.g. a staircase. The convertible panel may be moved via a robotic mount, whereby the position or orientation of the convertible panel may be changed.