US 12,231,684 B2
Information processing device and method
Tsuyoshi Kato, Kanagawa (JP); Satoru Kuma, Tokyo (JP); Ohji Nakagami, Tokyo (JP); Hiroyuki Yasuda, Saitama (JP); and Koji Yano, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/790,393
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Dec. 24, 2020, PCT No. PCT/JP2020/048358
§ 371(c)(1), (2) Date Jun. 30, 2022,
PCT Pub. No. WO2021/140930, PCT Pub. Date Jul. 15, 2021.
Claims priority of application No. 2020-000679 (JP), filed on Jan. 7, 2020.
Prior Publication US 2023/0023219 A1, Jan. 26, 2023
Int. Cl. H04N 19/597 (2014.01); H04N 19/30 (2014.01); H04N 19/50 (2014.01)
CPC H04N 19/597 (2014.11) [H04N 19/30 (2014.11); H04N 19/50 (2014.11)] 19 Claims
OG exemplary drawing
 
1. An information processing device comprising:
a hierarchization unit configured to, for attribute information of each point of a point cloud that represents an object having a three-dimensional shape as a set of points, hierarchize the attribute information by recursively repeating classification of a prediction point for deriving a difference value between the attribute information and a predicted value of the attribute information and a reference point used for deriving the predicted value with respect to the reference point,
wherein the hierarchization unit is further configured to set the reference point on a basis of a centroid of points, and
wherein the hierarchization unit is implemented via at least one processor.