US 11,991,348 B2
Information processing device and method
Koji Yano, Tokyo (JP); Hiroyuki Yasuda, Saitama (JP); Tsuyoshi Kato, Kanagawa (JP); Satoru Kuma, Tokyo (JP); and Ohji Nakagami, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/620,412
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Jun. 11, 2020, PCT No. PCT/JP2020/023040
§ 371(c)(1), (2) Date Dec. 17, 2021,
PCT Pub. No. WO2020/262019, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 2019-116969 (JP), filed on Jun. 25, 2019.
Prior Publication US 2022/0353492 A1, Nov. 3, 2022
Int. Cl. H04N 19/103 (2014.01); G06T 9/40 (2006.01); H04N 19/124 (2014.01); H04N 19/96 (2014.01)
CPC H04N 19/103 (2014.11) [G06T 9/40 (2013.01); H04N 19/124 (2014.11); H04N 19/96 (2014.11)] 22 Claims
OG exemplary drawing
 
1. An information processing device comprising:
circuitry configured to:
select, as an encoding method for a point cloud representing a three-dimensional object, from among
a first encoding method in which target position information of a target point is derived on a basis of prediction position information of a prediction point predicted using reference position information of a reference point in an octree structure of the point cloud, or
a second encoding method in which the target position information is directly derived on a basis of a relative distance from a leaf of the octree structure;
derive, in the selected first encoding method, the prediction position information on a basis of the reference position information and the target position information;
derive a difference between the prediction position information and the target position information; and
encode the reference position information and the difference between the prediction position information and the target position information.