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US 12,003,769 B2Granted
Point cloud data transmission device, point cloud data transmission method, point cloud data reception device, and point cloud data reception method
AssigneeLG Electronics Inc.
InventorsHyejung Hur, Sejin Oh
Life of this patent
Estimating the term…
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.
Claims8
A method for receiving point cloud data by a receiving apparatus, the method comprising:
- receiving a bitstream including point cloud data;
- decoding geometry data of the point cloud data partially,
- wherein the decoded geometry data is represented based on an octree, and
- wherein a geometry position of a node in a level of the octree is reconstructed based on a center position of the node for spatial scalability at the level of Levels of Detail (LoDs) of the octree that are skipped from a bottom of the octree;
- and
- decoding attribute data of the point cloud data based on the reconstructed geometry position.
3 more elements
An apparatus for receiving point cloud data, the apparatus comprising:
- a receiver configured to receive a bitstream including point cloud data;
- a decoder configured to:
- decode geometry data of the point cloud data partially,
- wherein the decoded geometry data is represented based on an octree, and
- wherein a geometry position of a node in a level of the octree is reconstructed based on a center position of the node for spatial scalability at the level of Levels of Detail (LoDs) of the octree that are skipped from a bottom of the octree;
- and
- decode attribute data of the point cloud data based on the reconstructed geometry position.
4 more elements
A method for transmitting point cloud data, the method comprising:
- encoding geometry data of point cloud data,
- wherein the encoded geometry data is represented based on an octree, and
- wherein a node in a level of the octree is reconstructed based on a center position of the node for spatial scalability at the level of Levels of Detail (LoDs) of the octree that are skipped from a bottom of the octree;
- encoding attribute data of the point cloud data based on the reconstructed geometry position;
- and
- transmitting a bitstream including the geometry data and the attribute data of the point cloud data.
3 more elements
An apparatus for transmitting point cloud data, the apparatus comprising:
- encoding geometry data of point cloud data,
- wherein the encoded geometry data is represented based on an octree, and
- wherein a geometry position of a node in a level of the octree is reconstructed based on a center position of the node for spatial scalability at the level of Levels of Detail (LoDs) of the octree that are skipped from a bottom of the octree;
- encoding attribute data of the point cloud data based on the reconstructed geometry position;
- and
- transmitting a bitstream including the geometry data and the attribute data of the point cloud data.
3 more elements
Dependencies are inferred from the claim text.