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US 11,057,645 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 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.
Claims13
A method for receiving point cloud data by an apparatus, the method comprising:
- receiving a bitstream including point cloud data,
- the point cloud data including geometry data and attribute data;
- decoding the geometry data;
- and
- decoding the attribute data,
- wherein the geometry data include octree information,
- wherein LOD (Level of Detail)s are generated based on the octree information,
- wherein only one of a first point or a last point of one or more points in a LOD is sampled based on an index of the LOD,
- wherein, based on the index of the LOD, when the first point is sampled for the LOD, a last point of points included in a next LOD of the LOD is sampled, or
- wherein, based on the index of the LOD, when the last point is sampled for the LOD, a first point of points included in the next LOD of the LOD is sampled.
7 more elements
An apparatus for receiving point cloud data, the apparatus comprising:
- a receiver configured to receive a bitstream including point cloud data,
- the point cloud data including geometry data and attribute data;
- a decoder configured to decode the geometry data;
- and
- a decoder configured to decode the attribute data,
- wherein the geometry data including octree information,
- wherein LOD (Level of Detail)s are generated based on the octree information,
- wherein points in nodes of the LODs are sampled,
- wherein only one of a first point or a last point of one or more points in a LOD is sampled based on an index of the LOD,
- wherein, based on the index of the LOD, when the first point is sampled for the LOD, a last point of points included in a next LOD of the LOD is sampled, or
- wherein, based on the index of the LOD, when the last point is sampled for the LOD, a first point of points included in the next LOD of the LOD is sampled.
8 more elements
A method for transmitting point cloud data by an apparatus, the method comprising:
- encoding geometry data;
- encoding attribute data,
- the geometry data including octree information,
- LOD (Level of Detail)s are generated based on the octree information,
- points in nodes of the LODs are sampled,
- wherein only one of a first point or a last point of one or more points in a LOD is sampled based on an index of the LOD;
- transmitting a bitstream including point cloud data including the geometry data and the attribute data,
- wherein, based on the index of the LOD, when the first point is sampled for the LOD, a last point of points included in a next LOD of the LOD is sampled, or
- wherein, based on the index of the LOD, when the last point is sampled for the LOD, a first point of points included in the next LOD of the LOD is sampled.
6 more elements
An apparatus for transmitting point cloud data, the apparatus comprising:
- an encoder configured to encode geometry data;
- an encoder configured to encode attribute data,
- the geometry data including octree information,
- LOD (Level of Detail)s are generated based on the octree information,
- points in nodes of the LODs are sampled,
- wherein only one of a first point or a last point of one or more points in a LOD is sampled based on an index of the LOD;
- a transmitter configured to transmit a bitstream including point cloud data including the geometry data and the attribute data,
- wherein, based on the index of the LOD, when the first point is sampled for the LOD, a last point of points included in a next LOD of the LOD is sampled, or
- wherein, based on the index of the LOD, when the last point is sampled for the LOD, a first point of points included in the next LOD of the LOD is sampled.
6 more elements
Dependencies are inferred from the claim text.