CPC H04N 19/31 (2014.11) [H04N 19/132 (2014.11); H04N 19/136 (2014.11); H04N 19/597 (2014.11)] | 14 Claims |
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.
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