Methods for streaming visible blocks of volumetric video

A processor-implemented method for transmitting a set of blocks of volumetric video from a content server for streaming visible blocks at a client device during a predefined time period, the method comprising:

• processing at least one block description file, at the content server, wherein the at least one block description file comprises a set of block descriptions associated with the set of blocks for the predefined time period;
• determining the visible blocks based on a 3D position, size, and an orientation of each block in the set of blocks and at least one view parameter of a user of the client device, at the content server, by processing each block description in the at least one block description file, wherein for each block in the set of blocks, a block description for each block comprises a 3D position, size, and an orientation of each block, wherein the visible blocks are a subset of the set of blocks, that are capable of being visible to the user during the predefined time period;
• and
• transmitting the visible blocks to the client device as a visible blocks video.

One or more non-transitory computer readable storage mediums storing one or more sequences of instructions, which when executed by one or more processors, causes a processor-implemented method for streaming a set of visible blocks of volumetric video that correspond to a predefined time period from a content server to a client device, the method comprising:

• receiving at least one block description file at the client device, wherein the at least one block description file comprises a set of block descriptions associated with the set of blocks for the predefined time period, wherein for each block in the set of blocks, a block description for each block comprises a 3D position, size, and an orientation of each block;
• processing each block description in the at least one block description file, at the client device, to determine the visible blocks that are selected from the set of blocks, wherein the visible blocks are a subset of the set of blocks, that are capable of being visible to a viewer of the client device during the predefined time period, wherein the visible blocks are determined based on the 3D position, size, and the orientation of each block in the set of blocks and view parameters of a user of the client device;
• transmitting a request for the visible blocks, from the client device to the content server;
• and
• receiving the visible blocks as a visible blocks video, at the client device.