An information processing apparatus (30) includes: a specification unit (331) that specifies a viewpoint position of an observer of a display device (10) that reproduces rays of light that have been sent out by a three-dimensional object; a setting unit (332) that sets a region that makes it possible for the observer to stereoscopically view the three-dimensional object, by using, as a reference, the viewpoint position that has been specified by the specification unit (331); and a display control unit (333) that performs control to cause the display device (10) to emit a ray-of-light group that makes it possible to stereoscopically view the three-dimensional object from an inside of the region that has been set by the setting unit (332), and makes it impossible to stereoscopically view the three-dimensional object from an outside of the region.

Systems, devices, media, and methods are presented for capturing and sharing visual content, especially three-dimensional video, with a plurality of users with compatible devices. The methods in some implementations include transmitting the visual content to a portable projector, generating a unique invite and broadcasting it to a plurality of eyewear devices, and projecting the visual content onto a screen for viewers who accepted the invite and are wearing a compatible eyewear device. For projection in 3D format, the eyewear devices include an active shutter mode. The portable projector may be housed in the interior of a case. In some configurations, the case interior is sized and shaped to support the projector and an eyewear device. The system may include multiple projectors at remote locations directed to project the visual content simultaneously.

A three-dimensional imaging system and method are provided. The three-dimensional imaging system includes a suspension force field generator, a projection module, and a controller. The suspension force field generator generates a suspension force field to suspend a plurality of scattering particles used for scattering incident light and distribute the scattering particles on a projection plane. The projection module projects an image on the projection plane. The controller is coupled to the suspension force field generator and the projection module, controls the suspension force field generator to change the suspension force field so that the projection plane where the scattering particles are distributed moves in a display space, extracts a slice plane image that matches a position of the projection plane from multiple slice plane images sliced from a three-dimensional stereoscopic image, and controls the projection module to project the extracted slice plane image to the projection plane.

A multi-directional backlight and a multi-user multiview display provide emitted light and associated multiview images having different mutually exclusive angular ranges and different user-specific view zones. The multi-directional backlight includes first and second multiview backlights, each of which includes multibeam elements configured to provide emitted light having directional light beams with directions corresponding to view directions of a respective multiview images. The emitted light provided by the first multiview backlight has a first angular range that is mutually exclusive of a second angular range of emitted light provided by the second multiview backlight, at respective first and second convergence distances. The multi-user multiview display includes a first multiview display configured to provide a first multiview image to a first user in a first view zone and a second multiview display configured to provide a second multiview image to a second user in a second view zone.

A directional privacy display may include a waveguide; and an array of light sources and spatial light modulator that operate in a time sequential manner. The waveguide may include light extraction features arranged to direct light from an array of light sources by total internal reflection to an array of viewing windows and a reflector arranged to direct light from the waveguide by transmission through extraction features of the waveguide to the same array of viewing windows. First and second phases may be temporally multiplexed with respective primary and secondary images and primary and secondary angular illumination distributions. An efficient and bright privacy display may be provided with obscured primary image visibility for off-axis observers.

A video distribution system includes a terminal device and a video data distribution device. The terminal device includes an identification information output part configured to output identification information representing first video data, which is generated from an original video, to the video data distribution device, and a video acquisition part configured to acquire second video data, which is generated from the original video and different from the first video data, from the video data distribution device. The video data distribution device includes an identification information acquisition part configured to acquire the identification information from the terminal device, and a video output part configured to output the second video data to the terminal device based on the identification information.

The disclosed system may include a communication device configured to receive wireless synchronization information for display content, a lens, an optical device, and a controller configured to determine that the display content is in a field of view of the lens, and in response to determining that the display content is within the field of view of the lens, cause the lens to selectively allow the display content to pass through the lens based on the wireless synchronization information. Various other related methods and systems are also disclosed.

The disclosed system may include a communication device configured to receive wireless synchronization information for display content, a lens, an optical device, and a controller configured to determine that the display content is in a field of view of the lens, and in response to determining that the display content is within the field of view of the lens, cause the lens to selectively allow the display content to pass through the lens based on the wireless synchronization information. Various other related methods and systems are also disclosed.

The invention features techniques for presenting more than one perspective views to each eye of the viewer, through generating viewing zones with an interval smaller than the diameter of the viewer's pupil by display panel/grating pair/pairs. In the first method, the arraying direction of the small-interval viewing zones is designed having an appropriate small inclination angle to the line connecting the viewer's two pupils, so as to cover each eye with more than one viewing zones which are different with each other. In the extreme case, 4 small-interval viewing zones can implement 3D display with two views for each eye. This is absolutely different with existing grating-based 3D display, which aligns viewing zones along the direction with a small angle (<π/4) to the line connecting the viewer's two pupils and thus a rather large number of small-interval viewing zone is needed for covering the viewer's two eyes.

A method for pairing of shutter glasses (411-414) with a remote control unit (RCU) (461-464, 272-273) for use with a display device (220, 230) configured to display a plurality of video streams by time interleaving the frames of the video streams and sending synchronization signal to shutter glasses. The method comprises the steps of: generating at least one synchronization signal (911, 912; 921, 922; 913, 923) for the shutter glasses (411-414); receiving an IR signal (331B) from the RCU (461-464, 272-273); comparing the temporal correspondence of the received IR signal (331B) with the generated at least one synchronization signal (911, 912; 921, 922; 913, 923); and in case a temporal correspondence is found, pairing the RCU (461-464, 272-273) with the shutter glasses (411-414) for which the correspondent synchronization signal (911, 912; 921, 922; 913, 923) was found.