Abstract: A method of transmitting three-dimensional (3D) video content, according to an embodiment of the present disclosure, includes: defining a 3D space; obtaining placement information about at least one 3D object to be placed in the 3D space; dividing the at least one 3D object; compressing 3D video content including the divided at least one 3D object into a two-dimensional (2D) video frame; obtaining, from the 2D video frame, location information about compressed data corresponding to the divided at least one 3D object; encoding the 2D video frame; generating a media file including the encoded 2D video frame and the location information; and transmitting the media file.

Abstract: A media content processing management method according to an embodiment of the disclosure includes: obtaining, from a network based media processing (NBMP) source, workflow information for media content processing; identifying whether to use a feedback task, based on the workflow information, obtaining, from a function repository, function information about a function of the feedback task or about a function of at least one media task for the media content processing, based on the workflow information, obtaining task information based on at least one of the workflow information and the function information, delivering the task information to each of tasks, obtaining client feedback information, and updating the task information based on the client feedback information, wherein the task information includes at least one of input information, output information, configuration information, or connection information of each of the tasks, and the connection information includes connection information of a media pr

Abstract: Various embodiments of the present disclosure relate to a device and a method for processing point cloud data on the basis of PCC technology in a multimedia system. To this end, a bit stream according to point cloud compression may be generated, and the bit stream may be divided to generate access units by a plurality of type-specific data elements. The plurality of data elements may include at least one layer-specific shape data, at least one layer-specific texture data, auxiliary patch information, and occupancy information. The size of each of the plurality of access units may match a maximum transmission unit in a network.

Abstract: A method and an apparatus for transmitting video-based point cloud contents (VPCC) data by a server are provided. The method includes generating moving picture experts group (MPEG) media transport protocol (MMTP) packets including at least one asset for the VPCC data, generating a signaling message including an asset group message about the at least one asset, and transmitting the MMTP packets and the signaling message to a client.

Abstract: According to an embodiment of the present disclosure, there is provided a method of receiving a multimedia service, in which, by using user feedback information in a large-volume 6 degrees of freedom (6DoF) media transmission service using network-based media processing (NBMP), it is possible to reduce network traffic through efficient media transmission and a burden of rendering media content on a terminal. According to an embodiment of the present disclosure, a method of processing content includes receiving content regarding an object in a three-dimensional (3D) space, the content including media data and metadata, performing pre-rendering on the media data based on user information, and outputting pre-rendered data.

Abstract: The disclosure relates to a fifth generation (5G) communication system or a sixth generation (6G) communication system for supporting higher data rates beyond a fourth generation (4G) communication system such as long term evolution (LTE). The disclosure provides rendering of fisheye 360 degree video contents, including fisheye circular image videos. A method of a transmitting device is provided. The method includes transmitting, to a receiving device, a Session Description Protocol (SDP) offer message for negotiation of parameter associated with a fisheye image, and receiving, from the receiving device, a fisheye SDP answer message including second fisheye image related information generated based on first fisheye image related information included in the SDP offer message. wherein the first fisheye image related information includes first maximum packing information indicating a maximum number of fisheye images that is available to be packed into one stream.

Abstract: A method performed by a user equipment (UE) in a wireless communication system is provided. The method includes transmitting, to a server, location information of the UE and a message for requesting a parameter related to one or more first anchor trees corresponding to a location of the UE, in response to the message for requesting the parameter, receiving, from the server, the parameter related to the one or more first anchor trees, based on the received parameter and the location information, identifying at least one second anchor tree, on which an AR content is renderable, among the one or more first anchor trees, requesting the server for an AR content corresponding to the identified at least one second anchor tree, receiving the requested AR content from the server, and rendering the received AR content on the at least one second anchor tree.

Abstract: The present disclosure relates to a method and a device for generating and transmitting a media file containing three-dimensional (3D) video content. The present disclosure also relates to a method and a device for reconstructing and reproducing three-dimensional video content from a received media file. According to an aspect of an embodiment of the present disclosure, a method of generating a media file containing three-dimensional video content may include inserting, into a media data box in the media file, a plurality of components contained in a two-dimensional video frame in which the three-dimensional video content is compressed; inserting, into a metadata box in the media file, first tracks respectively corresponding to the components and a second track containing metadata; and inserting, into the second track, information about an entry point for each of the plurality of components.

Abstract: A media content processing management method according to an embodiment of the disclosure includes: obtaining, from a network based media processing (NBMP) source, workflow information for media content processing; identifying whether to use a feedback task, based on the workflow information, obtaining, from a function repository, function information about a function of the feedback task or about a function of at least one media task for the media content processing, based on the workflow information, obtaining task information based on at least one of the workflow information and the function information, delivering the task information to each of tasks, obtaining client feedback information, and updating the task information based on the client feedback information, wherein the task information includes at least one of input information, output information, configuration information, or connection information of each of the tasks, and the connection information includes connection information of a media pr

Abstract: The present invention relates to a technology for a sensor network, machine to machine (M2M) communication, machine type communication (MTC), and the Internet of things (IoT). The present invention can be utilized for intelligent services (smart home, smart building, smart city, smart car or connected car, health care, digital education, retail, security and safety-related services, and the like) based on the technology. The present invention relates to an efficient image processing method and device for virtual reality content, and according to one embodiment of the present invention, the image processing method for projecting an image of virtual reality content comprises the steps of: acquiring a first planar image projected by dividing a front part and a rear part of a spherical image for expressing a 360-degree image; generating a second planar image projected by sampling the first planar image on the basis of a pixel position; and encoding the second planar image.

Abstract: A method performed by a first terminal is provided. The method includes identifying capabilities of the first terminal connected to at least one component device, establishing, via a server, a session associated with an augmented reality (AR) service based on the capabilities of the first terminal, performing pre-processing on 3 dimensional (3D) media data acquired by the at least one component device, and transmitting, to a second terminal, the pre-processed 3D media data.

Abstract: Disclosed are a method and apparatus for generating metadata for a three dimensional (3D) image. The method includes generating metadata for an image rendered to be shaped as a sphere and transmitting the generated metadata, wherein the metadata includes information representing a region of the image.

Abstract: The present disclosure relates to a method and device for transmitting and receiving video content including three-dimensional (3D) data. The method of transmitting video content through a plurality of assets includes identifying whether content transmitted through an asset is a sub-picture; when the content transmitted through the asset is the sub-picture, generating sub-picture asset information comprising information about other sub-pictures constituting a composition picture together with the sub-picture; and transmitting the sub-picture asset information and the content.

Abstract: According to an embodiment of the present disclosure, there is provided a method of receiving a multimedia service, in which, by using user feedback information in a large-volume 6 degrees of freedom (6DoF) media transmission service using network-based media processing (NBMP), it is possible to reduce network traffic through efficient media transmission and a burden of rendering media content on a terminal. According to an embodiment of the present disclosure, a method of processing content includes receiving content regarding an object in a three-dimensional (3D) space, the content including media data and metadata, performing pre-rendering on the media data based on user information, and outputting pre-rendered data.

Abstract: A method and an apparatus for transmitting and receiving video content including 3D data are provided. According to an embodiment, a method for transmitting data related to content including an omnidirectional image and a point cloud object is provided. The method includes generating media data and metadata for the content including the omnidirectional image and the point cloud object; and transmitting the generated media data and the generated metadata, wherein the metadata comprises information for specifying sub-spaces of a bounding space related to the point cloud object.

Abstract: A method, performed by a device, of processing an image, may include obtaining a circular image generated by photographing a target space through a fisheye lens; generating metadata including lens shading compensation information for correcting color information of the obtained circular image; and transmitting the obtained circular image and the metadata to a terminal.

Abstract: A communication technique for merging, with an IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system is provided. The communication technique can be applied to an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, and security and safety-related services, and the like) on the basis of a 5G communication technology and an IoT-related technology. A method for processing a 360-degree image is provided. The method includes determining a three-dimensional (3D) model for mapping a 360-degree image; determining a partition size for the 360-degree image; determining a rotational angle for each of the x, y, and z axes of the 360-degree image; determining an interpolation method to be applied when mapping the 360-degree image to a two-dimensional (2D) image; and converting the 360-degree image into the 2D image.

Abstract: A method of transmitting three-dimensional (3D) video content, according to an embodiment of the present disclosure, includes: defining a 3D space; obtaining placement information about at least one 3D object to be placed in the 3D space; dividing the at least one 3D object; compressing 3D video content including the divided at least one 3D object into a two-dimensional (2D) video frame; obtaining, from the 2D video frame, location information about compressed data corresponding to the divided at least one 3D object; encoding the 2D video frame; generating a media file including the encoded 2D video frame and the location information; and transmitting the media file.

Abstract: The present disclosure relates to a method for transmitting metadata of an omnidirectional image by a transmission apparatus, the method comprising the steps of: projecting an omnidirectional image into a planar image based on a 3-dimensional (3D) geometry corresponding to the omnidirectional image; and transmitting metadata including type information of the 3D geometry, information for a region on the projected planar image, and information for an area on the omnidirectional image which is mapped to the region.

Abstract: A method, performed by a device, of processing an image, may include obtaining a circular image generated by photographing a target space through a fisheye lens; generating metadata including lens shading compensation information for correcting color information of the obtained circular image; and transmitting the obtained circular image and the metadata to a terminal.