Back to results
US 2024/0187648 A1Published application
Coding Vertex Information of a Point Cloud
AssigneeComcast Cable Communications, LLC
InventorSébastien Lasserre
Life of this patent
Estimating the term…
Abstract
One or more methods, apparatuses, computer-readable storage mediums, and systems for entropy coding vertex information of an edge in a voxelized space of a point cloud are disclosed. Symbols of a neighborhood configuration of a current edge may be determined based on one or more already coded edges. The already coded edges may be selected from a spatial topology of edges or its subset. An index indicating an appropriate context or probability model for a given occupancy configuration for a neighborhood of a current edge may be retrieved.
Claims20
A method comprising:
- calculating a value based on a linear combination of:
- first occupancy values indicating vertex information of edges neighboring a current edge associated with a video frame;
- and
- first coefficients comprising signs based on spatial positions of the edges, corresponding to the first coefficients, relative to the current edge;
- selecting, based on a neighborhood configuration associated with the value, a context associated with coding vertex information of the current edge;
- and
- coding, based on the context, the vertex information of the current edge.
4 more elements
A method comprising:
- calculating a value based on a linear combination of:
- occupancy values indicating vertex information of edges neighboring a current edge associated with a video frame;
- and
- coefficients comprising signs based on spatial positions of the edges, corresponding to the first coefficients, relative to the current edge;
- determining, based on the value, one or more symbols of a neighborhood configuration of the current edge;
- and
- coding, based on a context associated with the neighborhood configuration, vertex information of the current edge.
4 more elements
A method comprising:
- calculating a value as a sum of:
- an offset based on a direction of a current edge associated with a video frame;
- and
- a linear combination based on neighboring edges intersecting at least one of two endpoints of the current edge;
- determining, based on the value, a symbol of a neighborhood configuration of the current edge;
- selecting, based on the neighborhood configuration, a context associated with coding vertex information of the current edge;
- and
- coding, based on the context, the vertex information of the current edge.
5 more elements
Dependencies are inferred from the claim text.