US 11,895,301 B2
Encoding and decoding a point cloud using patches for in-between samples
Pierre Andrivon, Liffre (FR); Yannick Olivier, Thorigne Fouillard (FR); Jean-Claude Chevet, Betton (FR); and David Gendron, Chevaigne (FR)
Assigned to INTERDIGITAL CE PATENT HOLDINGS, SAS, Paris (FR)
Appl. No. 17/763,025
Filed by INTERDIGITAL CE PATENT HOLDINGS, SAS, Paris (FR)
PCT Filed Sep. 15, 2020, PCT No. PCT/EP2020/075680
§ 371(c)(1), (2) Date Mar. 23, 2022,
PCT Pub. No. WO2021/058315, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 19306190 (EP), filed on Sep. 24, 2019.
Prior Publication US 2022/0345709 A1, Oct. 27, 2022
Int. Cl. H04N 19/132 (2014.01); H04N 19/182 (2014.01); H04N 19/597 (2014.01); H04N 19/463 (2014.01)
CPC H04N 19/132 (2014.11) [H04N 19/182 (2014.11); H04N 19/463 (2014.11); H04N 19/597 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
encoding at least one attribute of first 3D samples of a point cloud, wherein the at least one attribute of said first 3D samples is encoded as at least one first attribute patch of 2D samples; wherein said first 3D samples being 3D samples whose 3D coordinates are encoded as pixel values of a patch of a geometry image,
encoding at least one attribute of in-between 3D samples, in-between 3D samples being 3D samples of the point cloud located between two orthogonally projected 3D samples of the point cloud along a same projection line, wherein the at least one attribute of in-between 3D samples is encoded as at least one second attribute patch of 2D samples; and
encoding an information indicating whether said at least one first attribute patch of 2D samples and said at least one second attribute patch of 2D samples are stored in separate images,
wherein the information comprises
a first flag that indicates whether said at least one first attribute patch of 2D samples is stored in a first image or if said at least one first attribute patch of 2D samples is stored with an other attribute patch of 2D samples in a second image, and
a second flag that indicates whether said at least one second attribute patch of 2D samples is stored in a third image or if said at least one second attribute patch of 2D samples is stored with the other attribute patch of 2D samples in said second image.