US 12,272,107 B2
Use of tiered hierarchical coding for point cloud compression
Guido Meardi, London (GB)
Assigned to V-NOVA INTERNATIONAL LIMITED, London (GB)
Appl. No. 17/904,093
Filed by V-NOVA INTERNATIONAL LIMITED, London (GB)
PCT Filed Feb. 11, 2021, PCT No. PCT/GB2021/050335
§ 371(c)(1), (2) Date Aug. 11, 2022,
PCT Pub. No. WO2021/161028, PCT Pub. Date Aug. 19, 2021.
Claims priority of application No. 2001839 (GB), filed on Feb. 11, 2020.
Prior Publication US 2023/0080852 A1, Mar. 16, 2023
Int. Cl. G06V 10/00 (2022.01); G06T 3/40 (2006.01); G06T 9/00 (2006.01); G06T 9/40 (2006.01)
CPC G06T 9/001 (2013.01) [G06T 3/40 (2013.01); G06T 9/40 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of encoding a three-dimensional point cloud comprising:
obtaining a set of points within the three-dimensional point cloud, a point within the set of points having a co-ordinate in three-dimensions;
converting the points into a two-dimensional representation, wherein, for a point within the set of points, information describing the co-ordinate is represented as a location within the two-dimensional representation and a value at the location; and
encoding the two-dimensional representation using a tier-based hierarchical coding format to output encoded data, wherein the tier-based hierarchical coding format encodes the two-dimensional representation as a plurality of layers, the plurality of layers representing echelons of data used to progressively reconstruct the signal at different levels of quality.