A method for displaying virtual content to a user, the method includes determining an accommodation of the user's eyes. The method also includes delivering, through a first waveguide of a stack of waveguides, light rays having a first wavefront curvature based at least in part on the determined accommodation, wherein the first wavefront curvature corresponds to a focal distance of the determined accommodation. The method further includes delivering, through a second waveguide of the stack of waveguides, light rays having a second wavefront curvature, the second wavefront curvature associated with a predetermined margin of the focal distance of the determined accommodation.

The present technology relates to an information processing device and an information processing method capable of implementing video projection using a plurality of projection devices more reliably. There is provided an information processing device including a control unit configured to detect a manipulation of a user on a designator projected to a projection area of each of a plurality of projection devices and generate relative position information regarding relative positions of the plurality of projection areas based on a detection result. The present technology can be applied to, for example, a device controlling a plurality of projectors.

An infrared information display apparatus according to the present disclosure includes a first black-body furnace; a second black-body furnace that has a temperature different from a temperature of the first black-body furnace; a drive control unit configured to perform drive switching control of reflecting a temperature corresponding to input temperature information of a far-infrared image by switching radiation light reflected by a reflecting mirror from radiation light of the first black-body furnace to radiation light of the second black-body furnace based on the temperature information; and a reflecting section that has a plurality of two-dimensionally disposed reflecting mirrors corresponding to each pixel of the far-infrared image and of which a direction is changed by the drive switching control.

Apparatus, method, and system utilizing USB or wireless cameras and online network for force-on-force training where live participants can be in the same room, different rooms, or different geographic locations. A video camera is aimed at a live actor and the computer, via a projector and software program, transfers it to a wall or projection screen. The live actor can choose a picture or video as a background and virtually transfer the action to a different environment. The live role model can be in the same room or connected via the internet to provide a live, non-recorded interactive training experience. The computer, when projecting the live video, adds a series of dots to the live video signal received that is being transferred to the wall or projection screen by the projector. A sensor camera detects the projected dots and saves their positions relative to the camera frame for later use.

Apparatus, method, and system utilizing USB or wireless cameras and online network for force-on-force training where live participants can be in the same room, different rooms, or different geographic locations. A video camera is aimed at a live actor and the computer, via a projector and software program, transfers it to a wall or projection screen. The live actor can choose a picture or video as a background and virtually transfer the action to a different environment. The live role model can be in the same room or connected via the internet to provide a live, non-recorded interactive training experience. The computer, when projecting the live video, adds a series of dots to the live video signal received that is being transferred to the wall or projection screen by the projector. A sensor camera detects the projected dots and saves their positions relative to the camera frame for later use.

An imaging system includes an image realisation device, and projection optics for rendering a display image on a display screen. The image realisation device includes an image realisation surface and a light structuring device having a surface with a first and second region. The light structuring device simulates a first lens on the first region of the surface. A first source image formed on a first region of the image realisation surface and projected through the projection optics renders a first display image on the display screen at a first apparent depth. The light structuring device simulates a second lens on the second region of the surface. A second source image formed on a second region of the image realisation surface and projected through the projection optics renders a second display image on the display screen at a second apparent depth. The first and second lens are independently configurable.

A projection display apparatus (1) according to one embodiment of the present disclosure includes: a light source section (110); an image formation section (300) including a display device (310) that modulates light from the light source section on the basis of an input picture signal to generate a projection image; a projection section (400) that projects image light generated by the display device; an unnecessary light processing section (610) to which unnecessary light that does not contribute to a generation of the projection image is to be applied, out of light to be applied to the display device; and a heat circulation section (620) that spatially and mechanically couples the projection section and the unnecessary light processing section, or couples spatially and via a fluid the projection section and the unnecessary light processing section.

[Object] Provided is an information processing apparatus that is able to provide consistent image quality even if a distance from a display apparatus varies within a projection region. [Solving Means] The information processing apparatus according to an embodiment of the present disclosure includes a transformation matrix calculation section, a scale calculation section, and an input display generation section. The transformation matrix calculation section calculates a transformation matrix that converts the coordinates of an input position of an input device within a projection region projected from a display apparatus from the coordinates of an image coordinate system of a sensor apparatus having detected the input position to the coordinates of a screen coordinate system of the display apparatus. The scale calculation section calculates a scale correction value for a display mode of the locus of the input position in reference to distance information regarding the distance between the display apparatus and the input position. The input display generation section generates an input image depicting the locus of the input position through the use of the transformation matrix and the scale correction value.

An image processing apparatus generates, from a mixed image of projection images projected from a plurality of projection devices, separated images for respective pieces of color information, on the basis of a color model. For the color model, the pieces of color information of the projection images changed according to spectral characteristics of the projection devices and an image pickup device for acquiring the captured image and an attenuation coefficient are used as parameters, and a color separation processing section generates the separated images for the respective pieces of color information on the basis of the color model, by using parameters that minimize the difference between the color information of the captured image and color information estimated by the color model. The image processing apparatus becomes able to accurately separate projection images from the captured image of the mixed image including a plurality of projection images.

An image processing apparatus generates, from a mixed image of projection images projected from a plurality of projection devices, separated images for respective pieces of color information, on the basis of a color model. For the color model, the pieces of color information of the projection images changed according to spectral characteristics of the projection devices and an image pickup device for acquiring the captured image and an attenuation coefficient are used as parameters, and a color separation processing section generates the separated images for the respective pieces of color information on the basis of the color model, by using parameters that minimize the difference between the color information of the captured image and color information estimated by the color model. The image processing apparatus becomes able to accurately separate projection images from the captured image of the mixed image including a plurality of projection images.