US 12,223,683 B2
Method for encoding depth values of a set of 3D points once orthogonally projected into at least one image region of a projection plane
Julien Ricard, Cesson-Sevigne (FR); Celine Guede, Cesson-Sevigne (FR); Yannick Olivier, Cesson-Sevigne (FR); and Joan Llach Pinsach, Cesson-Sevigne (FR)
Assigned to InterDigital VC Holdings, Inc., Wilmington, DE (US)
Filed by InterDigital VC Holdings, Inc., Wilmington, DE (US)
Filed on Jul. 25, 2023, as Appl. No. 18/225,704.
Application 18/225,704 is a continuation of application No. 17/046,653, granted, now 11,756,234, previously published as PCT/US2019/026459, filed on Apr. 9, 2019.
Claims priority of application No. 18305437 (EP), filed on Apr. 11, 2018.
Prior Publication US 2024/0005560 A1, Jan. 4, 2024
Int. Cl. G06T 9/00 (2006.01)
CPC G06T 9/001 (2013.01) 21 Claims
OG exemplary drawing
 
1. A method comprising:
decoding first image data storing at least one first depth value of a first 3D point of a point cloud, the first 3D point and a second 3D point being orthogonally projected onto a same 2D point of a projection plane, the at least one first depth value being one of a minimum depth value from the projection plane or a maximum depth value from the projection plane, and the second 3D point having a second depth value being the other of the minimum depth value and the maximum depth value;
deriving from a bitstream a projection mode signaled for a patch to which the 2D point belongs, the projection mode indicating whether the at least one first depth value is the minimum depth value or the maximum depth value; and
reconstructing a geometry of the point cloud based on the projection mode.