Abstract: Disclosed herein is a method of transmitting point cloud data. The method may include acquiring point cloud data, encoding geometry information including positions of points of the point cloud data, generating one or more levels of detail (LODs) based on the geometry information and selecting one or more neighbor points of each point to be attribute-encoded based on the one or more LODs, encoding attribute information of each point based on the selected one or more neighbor points of each point, and transmitting the encoded geometry information, the encoded attribute information, and signaling information.

Abstract: Disclosed herein are a point cloud data transmission method including encoding point cloud data, and transmitting a bitstream containing the point cloud data, and a point cloud data processing method including receiving a bitstream containing point cloud data, and decoding the point cloud data.

Abstract: Disclosed herein are a point cloud data transmission method including encoding point cloud data, and transmitting a bitstream containing the point cloud data, and a point cloud data reception method including receiving a bitstream containing point cloud data, and decoding the point cloud data.

Abstract: Disclosed herein is a method for receiving point cloud data, including receiving a bitstream containing the point cloud data, and decoding the point cloud data. Disclosed herein is a method for transmitting point cloud data, including encoding the point cloud data, and transmitting a bitstream containing the point cloud data.

Abstract: A 360-degree image data processing method performed by a 360-degree video reception apparatus, the method including: receiving 360-degree image data, obtaining information on an encoded picture and metadata from the 360-degree image data, decoding a picture based on the information on the encoded picture, and rendering the decoded picture and an overlay based on the metadata, wherein the metadata includes overlay related metadata, wherein the overlay is rendered based on the overlay related metadata, and wherein the overlay related metadata include packing information of the overlay.

Abstract: Disclosed herein is a method of transmitting point cloud data. The method may include acquiring point cloud data, encoding geometry information including positions of points in the point cloud data, encoding attribute information including attribute values of points in the point cloud data based on the geometry information, and transmitting the encoded geometry information, the encoded attribute information and signaling information.

Abstract: Disclosed herein is a method of transmitting point cloud data. The method may include acquiring point cloud data, encoding geometry information including positions of points in the point cloud data, generating Level Of Details (LODs) based on the geometry information and searching neighbor points of each point to be attribute encoded based on the generated LODs, encoding first attribute information of each point based on the searched neighbor points, encoding second attribute information of each point based on the searched neighbor points, and transmitting the encoded geometry information, the encoded first and second attribute information and signaling information.

Abstract: Disclosed herein is a method for receiving point cloud data, including receiving a bitstream containing the point cloud data, and decoding the point cloud data. Disclosed herein is a method for transmitting point cloud data, including encoding the point cloud data, and transmitting a bitstream containing the point cloud data.

Abstract: Disclosed herein is a point cloud data reception device including a receiver configured to receive a bitstream containing geometry data of point cloud data and/or attribute data of the point cloud data, and/or a decoder configured to decode the point cloud data in the bitstream. Disclosed herein is a point cloud data transmission device including an encoder configured to encode point cloud data, and/or a transmitter configured to transmit a bitstream containing the point cloud data and/or signaling information about the point cloud data.

Abstract: A 360 image data processing method performed by a 360 video receiving device, according to the present invention, comprises the steps of: receiving 360 image data; acquiring information and metadata on an encoded picture from the 360 image data; decoding the picture on the basis of the information on the encoded picture; and rendering the decoded picture and an overlay on the basis of the metadata, wherein the metadata includes overlay-related metadata, the overlay is rendered on the basis of the overlay-related metadata, and the overlay-related metadata includes information on a region of the overlay.

Abstract: A 360 image data processing method performed by a 360 video receiving device, according to the present invention, comprises the steps of: receiving 360 image data; acquiring information and metadata on an encoded picture from the 360 image data; decoding the picture on the basis of the information on the encoded picture; and rendering the decoded picture and an overlay on the basis of the metadata, wherein the metadata includes overlay-related metadata, the overlay is rendered on the basis of the overlay-related metadata, and the overlay-related metadata includes information on a region of the overlay.

Abstract: Provided is a 360-degree image data processing method performed by a 360-degree video reception apparatus. The method includes receiving 360-degree image data, obtaining information on an encoded picture and metadata from the 360-degree image data, decoding a picture based on the information on the encoded picture, rendering the decoded picture and an overlay based on the metadata, in which the metadata includes overlay related metadata, the overlay is rendered based on the overlay related metadata, the overlay related metadata includes information on an alpha plane of the overlay, and the information on the alpha plane of the overlay is included in a image item or a video track.

Abstract: Provided is a 360-degree image data processing method performed by a 360-degree video reception apparatus. The method includes receiving 360-degree image data, obtaining information on an encoded picture and metadata from the 360-degree image data, decoding a picture based on the information on the encoded picture, and rendering the decoded picture and an overlay based on the metadata, in which the metadata includes overlay related metadata, the overlay is rendered based on the overlay related metadata, and the overlay related metadata include group information of the overlay.

Abstract: A 360-degree image data processing method performed by a 360-degree video reception apparatus according to the present invention includes: receiving 360-degree image data; obtaining information on an encoded picture and metadata from the 360-degree image data; decoding a picture based on the information on the encoded picture; and rendering the decoded picture and an overlay based on the metadata, wherein the metadata includes group information, the group information includes group type information indicating a group including a main media and the overlay that can be rendered together, the decoded picture includes the main media, and the group information includes information indicating whether a track belonging to the group includes the main media or the overlay.

Abstract: A 360-degree image data processing method performed by a 360-degree video reception apparatus, the method including: receiving 360-degree image data, obtaining information on an encoded picture and metadata from the 360-degree image data, decoding a picture based on the information on the encoded picture, and rendering the decoded picture and an overlay based on the metadata, wherein the metadata includes overlay related metadata, wherein the overlay is rendered based on the overlay related metadata, and wherein the overlay related metadata include packing information of the overlay.

Abstract: A 360 image data processing method performed by a 360 video receiving device, according to the present invention, comprises the steps of: receiving 360 image data; acquiring information and metadata on an encoded picture from the 360 image data; decoding the picture on the basis of the information on the encoded picture; and rendering the decoded picture and an overlay on the basis of the metadata, wherein the metadata includes overlay-related metadata, the overlay is rendered on the basis of the overlay-related metadata, and the overlay-related metadata includes information on a region of the overlay.