US 12,444,089 B2
Point cloud data processing method and apparatus
Hyejung Hur, Seoul (KR); and Sejin Oh, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Appl. No. 17/624,086
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Jun. 11, 2020, PCT No. PCT/KR2020/007566
§ 371(c)(1), (2) Date Dec. 30, 2021,
PCT Pub. No. WO2021/002604, PCT Pub. Date Jan. 7, 2021.
Claims priority of application No. 10-2019-0079322 (KR), filed on Jul. 2, 2019.
Prior Publication US 2022/0366610 A1, Nov. 17, 2022
Int. Cl. G06T 9/40 (2006.01); G06T 9/00 (2006.01)
CPC G06T 9/001 (2013.01) [G06T 9/40 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for processing point cloud data, the method comprising:
encoding the point cloud data including geometry information and attribute information,
wherein the geometry information represents positions of points of the point cloud data and the attribute information represents attributes of the points of the point cloud data,
wherein the encoding the point cloud data includes encoding the geometry information and encoding the attribute information,
wherein the encoding the attribute information includes generating at least one level of detail (LOD),
wherein the generating at least one LOD includes sampling at least one point in a sampling range based on an octree, and
wherein the sampling includes a grouping operation based on a number of points within the sampling range and an assigning operation of one point based on the grouping operation; and
transmitting a bitstream including the encoded point cloud data.