Point cloud encoding device, point cloud decoding device, point cloud encoding method, point cloud decoding method, and program
AssigneesKDDI Research, Inc., University of Southern California
InventorsShashank Nelamangala SRIDHARA, Eduardo Hernan Pavez CARVELLI, Antonio ORTEGA, Ryousuke WATANABE, Keisuke NONAKA, Kyouhei UNNO
Life of this patent
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Abstract
Encoding efficiency for attribute information in point cloud information is improved. A point cloud encoding device includes a subsampling unit configured to preserve chroma signals of some points in a point cloud to be encoded and discard chroma signals of remaining points other than those points, and an attribute information encoding unit configured to encode the chroma signals of those points in the point cloud to be encoded and luma signals of all points.
Claims11
A point cloud encoding device comprising:
- a subsampling unit configured to preserve chroma signals of some points in a point cloud to be encoded and discard chroma signals of remaining points other than those points;
- and
- an attribute information encoding unit configured to encode the chroma signals of those points in the point cloud to be encoded and luma signals of all points.
A point cloud decoding device comprising:
- an attribute information decoding unit configured to decode chroma signals of some points and luma signals of all points in a reconstructed point cloud reconstructed from a bitstream;
- and
- an interpolation unit configured to interpolate chroma signals of a non-decoding target point which is a point where chroma signals are not decoded in the reconstructed point cloud on the basis of decoded chroma signals of a decoding target point which is a target point for decoding chroma signals.
A point cloud encoding method comprising:
- preserving chroma signals of some points in a point cloud to be encoded and discarding chroma signals of remaining points other than those points;
- and
- encoding the chroma signals of those points in the point cloud to be encoded and luma signals of all points.
A program for causing a computer included in a point cloud encoding device to execute:
- preserving chroma signals of some points in a point cloud to be encoded and discarding chroma signals of remaining points other than those points;
- and
- encoding the chroma signals of those points in the point cloud to be encoded and luma signals of all points.
A point cloud decoding method comprising:
- decoding chroma signals of some points and luma signals of all points in a reconstructed point cloud reconstructed from a bitstream;
- and
- interpolating chroma signals of a non-decoding target point which is a point where chroma signals are not decoded in the reconstructed point cloud on the basis of decoded chroma signals of a decoding target point which is a target point for decoding chroma signals.
A program for causing a computer included in a point cloud decoding device to execute:
- decoding chroma signals of some points and luma signals of all points in a reconstructed point cloud reconstructed from a bitstream;
- and
- interpolating chroma signals of a non-decoding target point which is a point where chroma signals are not decoded in the reconstructed point cloud on the basis of decoded chroma signals of a decoding target point which is a target point for decoding chroma signals.
Dependencies are inferred from the claim text.