Patent ID: 11887342
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. A method of decoding a three-dimensional image including a point cloud, the method comprising:
receiving a bitstream;
obtaining, from the bitstream, information related to down-sampling and data in which a two-dimensional image is compressed;
up-scaling at least one down-sampled patch included in the two-dimensional image, based on the information related to the down-sampling; and
reconstructing the point cloud by restoring color information and position information of points, based on the up-scaled at least one down-sampled patch included in the two-dimensional image,
wherein the information related to the down-sampling includes a predefined rule, and
wherein the predefined rule is a table indicating a size of blocks into which the at least one patch is divided and indicating a predefined position at which a point is preserved from the blocks.