The present technology relates to a reproduction device, a reproduction method, and a recording medium capable of suppressing influence of motion parallax and image distortion. There is provided a reproduction device including an image processing unit that performs processing including: projecting an image captured from a specific position in a real space on a projection surface arranged according to a reference position set in a virtual space; acquiring a head movement amount of a user viewing the projected image; changing, according to the head movement amount with respect to the reference position in a first direction that is at least one of a left-right direction or an up-down direction as viewed from the user, a first relative distance between the reference position and a user position in the first direction; changing, according to the head movement amount with respect to the reference position in a second direction that is a front-back direction as viewed from the user, a second relative distance between the reference position and the user position in the second direction; and causing a change amount of the first relative distance to be smaller than a change amount of the second relative distance. The present technology can be applied to, for example, a head mounted display.

The present technology relates to a reproduction device, a reproduction method, and a recording medium capable of suppressing influence of motion parallax and image distortion. There is provided a reproduction device including an image processing unit that performs processing including: projecting an image captured from a specific position in a real space on a projection surface arranged according to a reference position set in a virtual space; acquiring a head movement amount of a user viewing the projected image; changing, according to the head movement amount with respect to the reference position in a first direction that is at least one of a left-right direction or an up-down direction as viewed from the user, a first relative distance between the reference position and a user position in the first direction; changing, according to the head movement amount with respect to the reference position in a second direction that is a front-back direction as viewed from the user, a second relative distance between the reference position and the user position in the second direction; and causing a change amount of the first relative distance to be smaller than a change amount of the second relative distance. The present technology can be applied to, for example, a head mounted display.

A stereoscopic three-dimensional display and manufacturing method thereof includes a three-dimensional display and a depth sensor. The three-dimensional display includes a three-dimensional display module and a parallax optical module that corresponds to a plurality of first depth display portions and a plurality of second depth display portions and a first parallax optical portion and a second parallax optical portion. The depth sensor is electrically connected to the stereoscopic display module, and detects the distance between the user and the stereoscopic display, and selects whether all of the first depth display parts jointly output the first parallax image, or all of the second depth display parts jointly output the second parallax image, so that the user can view the stereoscopic imaging through the first parallax optical unit or the second parallax optical unit at different positions.

Some embodiments of an apparatus may include: a tracking module configured to track viewer movement adjustments; and a light field image display structure configured to display a light field image using the viewer movement adjustments. Some embodiments of a method may include: projecting a beam spot on a viewer of a light field display; determining an estimated location of the beam spot reflected off the viewer; detecting an actual location of the beam spot reflected off the viewer; and determining image correction parameters based on a comparison of the estimated location and the actual location of the beam spot reflected off the viewer.

Some embodiments of an apparatus may include: a tracking module configured to track viewer movement adjustments; and a light field image display structure configured to display a light field image using the viewer movement adjustments. Some embodiments of a method may include: projecting a beam spot on a viewer of a light field display; determining an estimated location of the beam spot reflected off the viewer; detecting an actual location of the beam spot reflected off the viewer; and determining image correction parameters based on a comparison of the estimated location and the actual location of the beam spot reflected off the viewer.

The present technique relates to a display device and method, and a program for presenting high-quality stereoscopic images in a simpler manner. A display unit is a four-viewpoint display device having a parallax barrier. On the display unit, block regions that are formed with pixels of channels CH0 through CH3 aligned in the parallax direction are aligned in the parallax direction. An allocation control unit allocates a parallax image for the left eye or a parallax image for the right eye to the pixels of each channel in block regions, in accordance with the viewpoint position of the user. For example, the same parallax image is allocated to pixels of two different channels adjacent to each other in the parallax direction. A generating unit generates a combined image by combining the parallax image for the right eye and the parallax image for the left eye in accordance with the allocation performed by the allocation control unit, and causes the display unit to stereoscopically display the combined image. The present invention can be applied to display devices.

A multi-view display controller determines view angles for each view of a multi-view media content for each viewer watching a multi-view display. The view angles determined for a viewer collectively define a viewer cone that displays the views onto the viewer. Media data of the multi-view media content is output together with information of the determined view angles to the multi-view display in order to allow each viewer to have the same experience of displayed media content regardless of where the viewer is positioned relative to the multi-view display.

One disclosed example provides a method for displaying a hologram via a head-mounted display (HMD) device. The method comprises, via a camera system on the HMD device, acquiring image data capturing a surrounding environment by detecting illumination light output by a projector located on a case for the HMD device. A distance is determined from the HMD device to an object in the surrounding environment based upon the image data. The method further comprises displaying via the HMD device a hologram, the hologram comprising a left-eye image and a right-eye image each having a perspective based upon the distance determined.

Disclosed in the present application are a method and device for determining the position of a viewer and adjusting a viewing area, and a device for displaying three-dimensional video signals, such that the position of a viewer in front of an electronic device can be accurately determined and the viewing area can be adjusted according to the specific position, enabling the viewer to be unaware of any sudden viewing change when watching 3D signals. The method for determining the position of the viewer is applied in an electronic device comprising a display screen capable of displaying three-dimensional video signals. The viewing areas of the electronic device include a three-dimensional display area and a non-three-dimensional display area. The method comprises: acquiring the image in front of the electronic device; judging whether the image contains the face image of the viewer; if the image contains the face image, identifying at least one feature in the face image to determine the position of the viewer; according to the at least one feature, determining whether the viewing area of the viewer is a three-dimensional display area or a non-three-dimensional display area.

The stereoscopic image display device which displays images corresponding to each of a plurality of viewpoints includes: a stereoscopic image display panel which includes a display panel in which a plurality of pixels are arranged and a light-ray separating module provided on the display panel for separating parallax images from each of the pixels towards a plurality of N-viewpoints (N is a natural number of 2 or larger) according to the layout direction of each of the pixels; an observer position measuring unit which measures an observing position of the observer who is facing the display surface; a relative position calculating unit which calculates a relative position of the observer with respect to the stereoscopic image display panel based on the measurement result; and an image generation processing unit which generates viewpoint image by corresponding to the relative position and outputs the image towards the stereoscopic image display panel.