US 12,244,866 B2
Device for transmitting point cloud data, method for transmitting point cloud data, device for receiving point cloud data, and method for receiving point cloud data
Hyunmook Oh, Seoul (KR); and Sejin Oh, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/909,598
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Jan. 20, 2021, PCT No. PCT/KR2021/095003
§ 371(c)(1), (2) Date Sep. 6, 2022,
PCT Pub. No. WO2021/182937, PCT Pub. Date Sep. 16, 2021.
Claims priority of application No. 10-2020-0030181 (KR), filed on Mar. 11, 2020.
Prior Publication US 2023/0171431 A1, Jun. 1, 2023
Int. Cl. H04N 19/70 (2014.01); H04N 19/119 (2014.01); H04N 19/30 (2014.01); H04N 19/50 (2014.01); H04N 19/96 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/119 (2014.11); H04N 19/30 (2014.11); H04N 19/50 (2014.11); H04N 19/96 (2014.11)] 15 Claims
OG exemplary drawing
 
1. A method of transmitting point cloud data, the method comprising:
encoding the point cloud data,
wherein the encoding includes:
generating levels of detail (LoDs) for the point cloud data,
generating refinement lists including refinement points for the levels of detail,
predicting a point in the refinement lists for a current level of detail by searching a neighboring point,
wherein the point is predicted based on the refinement lists for a reference level of detail which is fewer than a total number of the levels of detail; and
transmitting a bitstream including the point cloud data and signaling information.