US 12,406,403 B2
Vertex prediction based on mesh triangulation derivation
Xiaozhong Xu, State College, PA (US); Xiang Zhang, Sunnyvale, CA (US); and Shan Liu, San Jose, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed on Mar. 28, 2023, as Appl. No. 18/191,730.
Claims priority of provisional application 63/333,976, filed on Apr. 22, 2022.
Prior Publication US 2023/0342983 A1, Oct. 26, 2023
Int. Cl. G06T 9/00 (2006.01)
CPC G06T 9/001 (2013.01) 18 Claims
OG exemplary drawing
 
1. A method for video coding, the method comprising:
obtaining volumetric data of at least one three-dimensional (3D) visual content;
obtaining a plurality of 3D meshes from the volumetric data;
projecting vertices of the plurality of 3D meshes onto a plurality of two-dimensional (2D) meshes; and
signaling connectivity information of the plurality of 3D meshes based on the plurality of 2D meshes,
the signaling the connectivity information comprises signaling whether one of pixels of a 2D occupancy map is to be inferred or explicitly signaled and whether:
a first pixel of the pixels of the 2D occupancy map is to be inferred, and
a second pixel of the pixels of the 2D occupancy map is to be explicitly signaled.