US 12,482,141 B2
Method and apparatus for encoding, transmitting and decoding volumetric video
Bertrand Chupeau, Rennes (FR); Renaud Dore, Rennes (FR); and Franck Thudor, Rennes (FR)
Assigned to InterDigital CE Patent Holdings, SAS, Paris (FR)
Appl. No. 17/765,558
Filed by INTERDIGITAL CE PATENT HOLDINGS, SAS, Paris (FR)
PCT Filed Sep. 28, 2020, PCT No. PCT/EP2020/077103
§ 371(c)(1), (2) Date Mar. 31, 2022,
PCT Pub. No. WO2021/063887, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 19306264 (EP), filed on Oct. 2, 2019.
Prior Publication US 2022/0343549 A1, Oct. 27, 2022
Int. Cl. G06T 9/00 (2006.01); H04N 19/17 (2014.01); H04N 19/182 (2014.01); H04N 19/186 (2014.01); H04N 19/30 (2014.01); H04N 19/597 (2014.01)
CPC G06T 9/001 (2013.01) [H04N 19/17 (2014.11); H04N 19/182 (2014.11); H04N 19/186 (2014.11); H04N 19/30 (2014.11); H04N 19/597 (2014.11)] 14 Claims
OG exemplary drawing
 
1. A method for encoding a depth view of a Multiview plus Depth frame (MVD) in an atlas of patches, a patch being a rectangular region of the depth view, the method comprising:
dividing the depth view in first rectangular regions and second rectangular regions based on complexity of geometrical information within the rectangular regions, wherein the second rectangular regions are candidates for downscaling;
downscaling a resolution of the second rectangular regions in a vertical direction by a vertical factor and in a horizontal direction by a horizontal factor to obtain downscaled second rectangular regions; and
packing the first rectangular regions and the downscaled second rectangular regions in the atlas in association with metadata indicating for each patch of the atlas whether the patch is a first rectangular region or a downscaled second rectangular region and, if so, indicating the vertical factor and the horizontal factor used for the downscaling of the resolution.