US 12,177,480 B2
Image processing apparatus and method
Ryohei Takahashi, Tokyo (JP); and Mitsuhiro Hirabayashi, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/782,175
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Dec. 11, 2020, PCT No. PCT/JP2020/046249
§ 371(c)(1), (2) Date Jun. 3, 2022,
PCT Pub. No. WO2021/117859, PCT Pub. Date Jun. 17, 2021.
Claims priority of provisional application 62/947,910, filed on Dec. 13, 2019.
Prior Publication US 2023/0043987 A1, Feb. 9, 2023
Int. Cl. H04N 19/00 (2014.01); H04N 19/597 (2014.01); H04N 21/2389 (2011.01)
CPC H04N 19/597 (2014.11) [H04N 21/2389 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An image processing apparatus comprising:
circuitry configured to
select a 3D spatial region and an atlas tile group that correspond to a desired three-dimensional space, on a basis of link information that is stored in a file together with a bitstream of a point cloud expressing an object having a three-dimensional shape as a set of points, the link information linking the 3D spatial region of the point cloud with the atlas tile group;
extract, from the file, an atlas network abstraction layer (NAL) unit corresponding to the atlas tile group previously selected and extract a bitstream corresponding to the 3D spatial region previously selected; and
decode the bitstream extracted by the circuitry to generate 2D data corresponding to the 3D spatial region of the desired three-dimensional space, and decode the atlas NAL unit previously extracted to generate atlas information corresponding to the 2D data.