Method and apparatus for inter-channel prediction and transform for point cloud attribute coding
AssigneeTencent America LLC
InventorsSehoon YEA, Arash Vosoughi, Shan Liu
Life of this patent
Estimating the term…
Abstract
A method of interframe point cloud attribute coding is performed by at least one processor and includes coding a first color attribute of a point of a point cloud to obtain a first reconstructed residual, coding a second color attribute of the point to obtain a second reconstructed residual, and determining a quantization index of the second reconstructed residual, based on the first reconstructed residual and the second reconstructed residual. The method further includes updating the second reconstructed residual, based on the quantization index and the first reconstructed residual.
Claims20
A method of interframe point cloud attribute coding, the method being performed by at least one processor, and the method comprising:
- coding a first color attribute of a point of a point cloud to obtain a first reconstructed residual;
- coding a second color attribute of the point to obtain a second reconstructed residual;
- and
- determining whether to update the second reconstructed residual, based on a flag corresponding to the point.
An apparatus for interframe point cloud attribute coding, the apparatus comprising:
- at least one memory configured to store computer program code;
- and
- at least one processor configured to access the at least one memory and operate according to the computer program code, the computer program code comprising:
- coding code configured to cause the at least one processor to code a first color attribute of a point of a point cloud to obtain a first reconstructed residual, and code a second color attribute of the point to obtain a second reconstructed residual;
- and
- first determining code configured to cause the at least one processor to determine whether to update the second reconstructed residual, based on a flag corresponding to the point.
A non-transitory computer-readable storage medium storing instructions that cause at least one processor to:
- code a first color attribute of a point of a point cloud to obtain a first reconstructed residual;
- code a second color attribute of the point to obtain a second reconstructed residual;
- and
- determine whether to update the second reconstructed residual, based on a flag corresponding to the point.
Dependencies are inferred from the claim text.