In accordance with embodiments, a method of transmitting a video includes inter-view redundancy removing pictures for multiple viewing positions; packing inter-view redundancy removed pictures; and/or encoding the packed pictures and/or signaling information including center view generation information, pre-generation information, view synthesis recommendation information and/or reference view information. In accordance with embodiments, a method of receiving a video includes decoding a bitstream of the video based on viewing position and/or viewport information, unpacking pictures in the decoded bitstream; view regenerating the unpacked pictures; and/or view synthesizing the view regenerated pictures.

A point cloud data processing method according to embodiments may comprise a step of encoding and transmitting point cloud data, wherein said encoding comprises encoding a geometry indicating the positions of one or more points of the point cloud data, the step of encoding a geometry further comprises a step of generating an octree of the geometry, and a step of encoding attributes of the one or more points comprises the steps of: generating Morton codes of the one or more points; and rearranging the one or more points on the basis of the octree to generate one or more levels of detail (LOD). The point cloud data processing method according to embodiments may comprise receiving and decoding point cloud data.

The disclosure provides a video transmission method for virtual reality. The method includes reorganizing a first video and a second video obtained to generate a third video suitable for transmission through a physical wire, hence avoiding distortion caused by compression of a high-definition video. The disclosure further includes a video processing device and a video generating system employing the video transmission method.

The disclosure provides a video transmission method for virtual reality. The method includes reorganizing a first video and a second video obtained to generate a third video suitable for transmission through a physical wire, hence avoiding distortion caused by compression of a high-definition video. The disclosure further includes a video processing device and a video generating system employing the video transmission method.

Aspects of the disclosure provide methods and apparatuses for audio processing. In some examples, an apparatus for media processing includes processing circuitry. The processing circuitry receives first 3 degrees of freedom (3 DoF) information associated with a first media content for a scene in a media application. The first 3 DoF information includes a first revolution orientation for describing the first media content on a first sphere centered at a user of the media application. The processing circuitry determines that a rendering platform for rendering the first media content is a six degrees of freedom (6 DoF) platform, and calculates, first spatial location information of the first media content based on the first revolution orientation and first parameters of the first sphere. The first spatial location information is used in first 6 DoF information associated with the first media content for rendering the first media content on the 6 DoF platform.

Aspects of the disclosure provide methods and apparatuses for audio processing. In some examples, an apparatus for media processing includes processing circuitry. The processing circuitry receives first 3 degrees of freedom (3 DoF) information associated with a first media content for a scene in a media application. The first 3 DoF information includes a first revolution orientation for describing the first media content on a first sphere centered at a user of the media application. The processing circuitry determines that a rendering platform for rendering the first media content is a six degrees of freedom (6 DoF) platform, and calculates, first spatial location information of the first media content based on the first revolution orientation and first parameters of the first sphere. The first spatial location information is used in first 6 DoF information associated with the first media content for rendering the first media content on the 6 DoF platform.

Methods, apparatus, and systems for dynamically indicating a playout group in various scenarios are disclosed. In one example aspect, a method includes determining a playout group corresponding to a volumetric video in a three-dimensional space based on a playout group information, the playout group including a plurality of components, wherein each component of a certain type has a version that is different from another component of the certain type, obtaining a two-dimensional volumetric video content from a media track corresponding to the playout group, and reconstructing the volumetric video into a three-dimensional space based on the plurality of components with different versions.

Methods, apparatus, and systems for dynamically indicating a playout group in various scenarios are disclosed. In one example aspect, a method includes determining a playout group corresponding to a volumetric video in a three-dimensional space based on a playout group information, the playout group including a plurality of components, wherein each component of a certain type has a version that is different from another component of the certain type, obtaining a two-dimensional volumetric video content from a media track corresponding to the playout group, and reconstructing the volumetric video into a three-dimensional space based on the plurality of components with different versions.

Methods, systems, and media for generating and rendering immersive video content are provided. In some embodiments, the method comprises: receiving information indicating positions of cameras in a plurality of cameras; generating a mesh on which video content is to be projected based on the positions of the cameras in the plurality of cameras, wherein the mesh is comprised of a portion of a faceted cylinder, and wherein the faceted cylinder has a plurality of facets each corresponding to a projection from a camera in the plurality of cameras; receiving video content corresponding to the plurality of cameras; and transmitting the video content and the generated mesh to a user device in response to receiving a request for the video content from the user device.

Methods, systems, and media for generating and rendering immersive video content are provided. In some embodiments, the method comprises: receiving information indicating positions of cameras in a plurality of cameras; generating a mesh on which video content is to be projected based on the positions of the cameras in the plurality of cameras, wherein the mesh is comprised of a portion of a faceted cylinder, and wherein the faceted cylinder has a plurality of facets each corresponding to a projection from a camera in the plurality of cameras; receiving video content corresponding to the plurality of cameras; and transmitting the video content and the generated mesh to a user device in response to receiving a request for the video content from the user device.