Enhanced Edge Neighborhood for Coding Vertex Information
AssigneeComcast Cable Communications, LLC
InventorSébastien Lasserre
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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. A lookup table may be used to retrieve an index for a given occupancy configuration for a neighborhood of a current edge. The index may indicate an appropriate context or probability model. Based on the coding of the current edge, the lookup table may be updated.
Claims20
A method comprising:
- determining, by a computing device and based on vertex information of a spatial topology of edges, at least a portion of a neighborhood configuration of a current edge, wherein each edge of the spatial topology of edges, independent of a direction of the current edge, is coded before the current edge;
- and
- entropy coding, based on the neighborhood configuration, vertex information of the current edge.
A method comprising:
- determining, by a computing device, a neighborhood configuration of a current edge based on vertex information of at least one edge that fails to intersect a start point of the current edge;
- and
- entropy coding, based on the neighborhood configuration, vertex information of the current edge.
A method comprising:
- determining, by a computing device, a neighborhood configuration comprising:
- a first portion that is independent of a direction of a current edge;
- a second portion indicating the direction of the current edge;
- a third portion that is dependent on the direction of the current edge;
- and
- entropy coding, based on the neighborhood configuration, vertex information of the current edge.
Dependencies are inferred from the claim text.