US 11,790,602 B2
Information processing device and method
Koji Yano, Tokyo (JP); Tsuyoshi Kato, Kanagawa (JP); Satoru Kuma, Tokyo (JP); Ohji Nakagami, Tokyo (JP); and Hiroyuki Yasuda, Saitama (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/632,044
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Jul. 30, 2020, PCT No. PCT/JP2020/029185
§ 371(c)(1), (2) Date Feb. 1, 2022,
PCT Pub. No. WO2021/029226, PCT Pub. Date Feb. 18, 2021.
Claims priority of application No. 2019-148369 (JP), filed on Aug. 13, 2019.
Prior Publication US 2022/0277517 A1, Sep. 1, 2022
Int. Cl. G06T 17/00 (2006.01); G06T 7/11 (2017.01); G06T 9/40 (2006.01); G06T 15/08 (2011.01)
CPC G06T 17/005 (2013.01) [G06T 7/11 (2017.01); G06T 9/40 (2013.01); G06T 15/08 (2013.01); G06T 2200/08 (2013.01); G06T 2207/10028 (2013.01); G06T 2207/20021 (2013.01); G06T 2210/12 (2013.01); G06T 2210/56 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An information processing device comprising:
a neighboring pattern specifying unit that, on the basis of position information representing positions of points of a point cloud that represents an object in a three-dimensional shape as a set of points in units of first regions that are three-dimensional regions that divide an entire area corresponding to a three-dimensional area including the object into a plurality of regions, and for each second region that is a three-dimensional region composed of a plurality of the first regions, is configured to
identify whether or not each neighboring region that is the first region adjacent to a processing target region that is the first region to be processed includes points or is positioned outside the second region including the processing target region, and
specify a neighboring pattern that is a pattern of an identification result of each neighboring region, for each of the first regions that have been identified to include the points;
a context selection unit that is configured to select a context according to the neighboring pattern specified by the neighboring pattern specifying unit with respect to each of the first regions including the points; and
a coding unit that is configured to code the position information for each of the first regions using the context selected by the context selection unit to generate coded data of the position information,
wherein the neighboring pattern specifying unit, the context selection unit, and the coding unit are each implemented via at least one processor.