US 12,322,146 B2
Information processing device and method
Tomoya Naganuma, Kanagawa (JP); Satoru Kuma, Tokyo (JP); Hiroyuki Yasuda, Saitama (JP); and Ohji Nakagami, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 18/271,332
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Dec. 24, 2021, PCT No. PCT/JP2021/048120
§ 371(c)(1), (2) Date Jul. 7, 2023,
PCT Pub. No. WO2022/153835, PCT Pub. Date Jul. 21, 2022.
Claims priority of application No. 2021-004274 (JP), filed on Jan. 14, 2021.
Prior Publication US 2024/0303871 A1, Sep. 12, 2024
Int. Cl. G06T 9/40 (2006.01)
CPC G06T 9/40 (2013.01) 20 Claims
OG exemplary drawing
 
1. An information processing device comprising:
a coordinate transformation unit that transforms, for a point cloud representing a three-dimensional object as a set of points, a coordinate system for geometry data from a polar coordinate system to a Cartesian coordinate system;
a reference relationship setting unit that sets, by using the geometry data in the Cartesian coordinate system generated by the coordinate transformation unit, a reference relationship indicating a reference destination used to calculate a predictive value of attribute data of a processing target point;
a prediction residual calculation unit that calculates a prediction residual that is a difference value between the attribute data of the processing target point and the predictive value calculated based on the reference relationship set by the reference relationship setting unit; and
a prediction residual encoding unit that encodes the prediction residual calculated by the prediction residual calculation unit.