Methods of encoding and decoding video data are provided. In an encoding method, source video data comprising one or more source views is encoded into a video bitstream. Depth data of at least one of the source views is nonlinearly filtered and downsampled prior to encoding. After decoding, the decoded depth data is up-sampled and nonlinearly filtered.

Disclosed is a virtual content experience system. In the virtual content experience system, a central server for driving the system contains: a content conversion unit which converts two-dimensional image content, received by means of a data transmission and reception unit or input by a user, into a stereoscopic image; a motion information generation unit which recognizes text information extracted from the two-dimensional image content and converts the text information into motion information; a content playback control unit which is provided to transmit the motion information to a motion information management unit provided in a virtual reality experience chair, or receive start information and end information about the motion information from the motion information management unit to generate and change control information for controlling whether to provide new two-dimensional image content; and a display unit for displaying the content conversion unit, and the motion information or control information.

A method, includes saving in-flight data from an aircraft during a simulated training exercise, wherein the in-flight data includes geospatial locations of the aircraft, positional attitudes of the aircraft, and head positions of a pilot operating the aircraft, saving simulation data relating to a simulated virtual object presented to the pilot as augmented reality content in-flight, wherein the virtual object was programmed to interact with the aircraft during the simulated training exercise and representing the in-flight data from the aircraft and the simulation data relating to the simulated virtual object as a replay of the simulated training exercise.

A method performed by an electronic device for requesting tiles relating to a viewport of an ongoing omnidirectional video stream is provided. The ongoing omnidirectional video stream is provided by a server to be displayed to a user of the electronic device. The electronic device predicts for an impending time period, a future head gaze of the user in relation to a current head gaze of the user, based on: A current head gaze relative to a position of shoulders of the user, a limitation of the head gaze of the user bounded by the shoulders position of the user, and a current eye gaze and eye movements of the user. The electronic device then sends a request to the server. The request requests tiles relating to the viewport for the impending time period, selected based on the predicted future head gaze of the user.

A multi-viewpoint 3D display screen is provided, comprising: a display panel, having a plurality of composite pixels, wherein each composite pixel in the plurality of composite pixels comprises a plurality of composite subpixels, and each composite subpixel in the plurality of composite subpixels comprises a plurality of subpixels arranged in array; and a plurality of spherical gratings, covering the plurality of composite subpixels. The multi-viewpoint 3D display screen can play a 3D effect for users at different viewing distances, and achieves high-quality 3D quality. A multi-viewpoint 3D display device is also provided.

A multi-viewpoint 3D display screen is provided, comprising: a display panel, having a plurality of composite pixels, wherein each composite pixel in the plurality of composite pixels comprises a plurality of composite subpixels, and each composite subpixel in the plurality of composite subpixels comprises a plurality of subpixels arranged in array; and a plurality of spherical gratings, covering the plurality of composite subpixels. The multi-viewpoint 3D display screen can play a 3D effect for users at different viewing distances, and achieves high-quality 3D quality. A multi-viewpoint 3D display device is also provided.

Aspects of the subject disclosure may include, for example, a method performed by a processing system of determining a present orientation of a display region presented at a first time on a display of a video viewer, predicting a future orientation of the display region occurring at a second time based on data collected, to obtain a predicted orientation of the display region to be presented at the second time on the display of the video viewer, identifying, based on the predicted orientation of the display region, a first group of tiles from a video frame of a panoramic video being displayed by the video viewer, wherein the first group of tiles covers the display region in the video frame at the predicted orientation, and a plurality of objects moving in the video frame from the first time to the second time, wherein each object of the plurality of objects is located in a separate spatial region of the video frame at the second time, wherein a second group of tiles collectively covers the separate spatial regions, wherein tiles in the first group of tiles and tiles in the second group of tiles are different, and facilitating wireless transmission of the first group of tiles and a second tile from the second group of tiles, for presentation at the video viewer at the second time. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, a method performed by a processing system of determining a present orientation of a display region presented at a first time on a display of a video viewer, predicting a future orientation of the display region occurring at a second time based on data collected, to obtain a predicted orientation of the display region to be presented at the second time on the display of the video viewer, identifying, based on the predicted orientation of the display region, a first group of tiles from a video frame of a panoramic video being displayed by the video viewer, wherein the first group of tiles covers the display region in the video frame at the predicted orientation, and a plurality of objects moving in the video frame from the first time to the second time, wherein each object of the plurality of objects is located in a separate spatial region of the video frame at the second time, wherein a second group of tiles collectively covers the separate spatial regions, wherein tiles in the first group of tiles and tiles in the second group of tiles are different, and facilitating wireless transmission of the first group of tiles and a second tile from the second group of tiles, for presentation at the video viewer at the second time. Other embodiments are disclosed.

A method and apparatus for outputting a three-dimensional (3D) image are provided. To output a 3D image, a stereo image is generated based on viewpoints of a user and rendered into a 3D image. Since the stereo image is generated based on the viewpoints of the user, the user views a different side of an object appearing in the 3D image depending on a viewpoint of the user.

A method and apparatus for outputting a three-dimensional (3D) image are provided. To output a 3D image, a stereo image is generated based on viewpoints of a user and rendered into a 3D image. Since the stereo image is generated based on the viewpoints of the user, the user views a different side of an object appearing in the 3D image depending on a viewpoint of the user.