US 12,464,110 B2
Method and apparatuses for delivering a volumetric video content
Bertrand Chupeau, Rennes (FR); Gerard Briand, Ploufragan (FR); and Thierry Tapie, Rennes (FR)
Assigned to InterDigital VC Holdings, Inc., Wilmington, DE (US)
Appl. No. 17/642,075
Filed by InterDigital VC Holdings, Inc., Wilmington, DE (US)
PCT Filed Sep. 2, 2020, PCT No. PCT/US2020/049022
§ 371(c)(1), (2) Date Mar. 10, 2022,
PCT Pub. No. WO2021/050336, PCT Pub. Date Mar. 18, 2021.
Claims priority of application No. 19306090 (EP), filed on Sep. 10, 2019.
Prior Publication US 2023/0217006 A1, Jul. 6, 2023
Int. Cl. G06T 7/11 (2017.01); G06T 17/00 (2006.01); H04N 13/178 (2018.01); H04N 13/388 (2018.01); H04N 19/597 (2014.01)
CPC H04N 13/388 (2018.05) [G06T 7/11 (2017.01); G06T 17/00 (2013.01); H04N 13/178 (2018.05); H04N 19/597 (2014.11)] 13 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining an image by projecting a 3D scene according to a central point of view onto an image plane, the image being divided into first tiles having a same size;
obtaining second tiles, wherein a second tile is an image comprising patch pictures representative of a projection of a part of the 3D scene onto a picture plane according to a point of view different from the central point of view, a second tile having a same width and/or a same height as a first tile, wherein each first tile is associated with a collection of second tiles and wherein an association between a first tile and a second tile has a score;
identifying a viewport for displaying of a part of the 3D scene;
selecting a subset of first tiles according to the viewport;
selecting a set of second tiles comprising second tiles associated with first tiles of the subset of first tiles, the set of second tiles being selected as a function of a size of second tiles associated with first tiles of the subset and of the score of the associations; and
encoding an atlas image comprising the subset of first tiles and the set of second tiles arranged according to a layout selected in a set of layouts, the layout being selected according to a number of first tiles in the subset of first tiles and a number of second tiles in the set of second tiles and to a size of the second tiles in the set of second tiles.