Method and apparatus for immersive video encoding and decoding, and method for transmitting a bitstream generated by the immersive video encoding method
AssigneeResearch & Business Foundation Sungkyunkwan University
InventorsEun Seok Ryu, Jong Beom Jeong, Soon Bin Lee
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Abstract
Disclosed herein are an immersive image encoding/decoding method and apparatus, and a method for transmitting a bitstream generated by the immersive image encoding method. An immersive image encoding method according to the present disclosure may include: generating geometry atlases for an immersive image; aligning the geometry atlases to make an alignment height of the geometry atlases correspond to a height of a texture atlas; and generating a geometry bitstream by encoding the aligned geometry atlases.
Claims13
An immersive image encoding method performed in an immersive image encoding apparatus, the method comprising:
- generating geometry atlases for an immersive image;
- aligning the geometry atlases to make an alignment height of the geometry atlases correspond to a height of a texture atlas;
- and
- generating a geometry bitstream by encoding the aligned geometry atlases,
- wherein the geometry atlases are generated by dividing a first geometry atlas for the immersive image, and
- wherein a number of the geometry atlases are determined based on a resolution of the first geometry atlas.
An immersive image decoding method performed in an immersive image decoding apparatus, the method comprising:
- obtaining, from a bitstream, first information indicating whether or not an atlas for an immersive image has packed data;
- obtaining, from a bitstream, second information indicating whether or not the atlas has packed geometry data;
- and
- obtaining packing information for the atlas based on the first information or the second information,
- wherein the packing information includes information on an aligned geometry atlases,
- wherein the packed geometry data includes geometry atlases, and
- wherein a resolution of an unpacked geometry atlas is determined based on a number of the geometry atlases.
An immersive image encoding apparatus, comprising:
- a memory;
- and
- at least one processor,
- wherein the at least one processor is configured to:
- generate geometry atlases for an immersive image,
- align the geometry atlases to make an alignment height of the geometry atlases correspond to a height of a texture atlas, and
- generate a geometry bitstream by encoding the aligned geometry atlases,
- wherein the geometry atlases are generated by dividing a first geometry atlas for the immersive image, and
- wherein a number of the geometry atlases are determined based on a resolution of the first geometry atlas.
A method for transmitting a bitstream generated by an immersive image encoding method, wherein the immersive image encoding method comprises:
- generating geometry atlases for an immersive image;
- aligning the geometry atlases to make an alignment height of the geometry atlases correspond to a height of a texture atlas;
- and
- generating a geometry bitstream by encoding the aligned geometry atlases,
- wherein the geometry atlases are generated by dividing a first geometry atlas for the immersive image, and
- wherein a number of the geometry atlases are determined based on a resolution of the first geometry atlas.
Dependencies are inferred from the claim text.