Patent ID: 11887342
Assignee: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method of encoding a three-dimensional image including a point cloud, the method comprising:
determining a spatial area in a three-dimensional space represented by the point cloud;
projecting, onto a two-dimensional plane, a plurality of points included in the point cloud to generate a plurality of patches;
determining at least one patch corresponding to the determined spatial area;
down-sampling at least one patch according to a predefined rule;
generating a two-dimensional image by packing the at least one down-sampled patch and the plurality of patches corresponding to areas other than the determined spatial area; and
generating and outputting a bitstream including data in which the two-dimensional image is compressed and information related to the down-sampling performed to generate the two-dimensional image,
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.