US 12,120,328 B2
Transmission device of point cloud data and method performed by transmission device, and reception device of point cloud data and method performed by reception device
Hendry Hendry, Seoul (KR); Jong Yeul Suh, Seoul (KR); Jin Won Lee, Seoul (KR); and Seung Hwan Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Jun. 30, 2022, as Appl. No. 17/855,472.
Claims priority of provisional application 63/223,051, filed on Jul. 18, 2021.
Claims priority of provisional application 63/219,360, filed on Jul. 8, 2021.
Claims priority of provisional application 63/218,279, filed on Jul. 3, 2021.
Prior Publication US 2023/0014844 A1, Jan. 19, 2023
Int. Cl. H04N 19/31 (2014.01); H04N 19/132 (2014.01); H04N 19/136 (2014.01); H04N 19/597 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/31 (2014.11) [H04N 19/132 (2014.11); H04N 19/136 (2014.11); H04N 19/597 (2014.11)] 14 Claims
OG exemplary drawing
 
1. A method performed by a reception device of point cloud data, the method comprising:
obtaining geometry-based point cloud compression (G-PCC) file including the point cloud data; and
wherein the G-PCC file includes information on a sample group in which samples in the G-PCC file are grouped based on one or more temporal levels, and
wherein the G-PCC file further includes information on the temporal levels,
extracting one or more samples belonging to a target temporal level from the samples in the G-PCC file based on the information on the sample group and the information on the temporal levels,
wherein the information on the temporal levels comprises number information indicating a number of temporal levels and temporal level identification information for identifying the temporal levels.