US 12,243,279 B2
Method and apparatus for adaptive quantization for symmetry mesh
Thuong Nguyen Canh, San Benito, CA (US); Xiaozhong Xu, State College, PA (US); Shan Liu, San Jose, CA (US); and Fang-Yi Chao, Palo Alto, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed on Sep. 21, 2023, as Appl. No. 18/471,803.
Claims priority of provisional application 63/418,394, filed on Oct. 21, 2022.
Prior Publication US 2024/0153149 A1, May 9, 2024
Int. Cl. G06T 9/00 (2006.01); H04N 19/117 (2014.01); H04N 19/124 (2014.01); H04N 19/136 (2014.01); H04N 19/61 (2014.01)
CPC G06T 9/001 (2013.01) [H04N 19/117 (2014.11); H04N 19/124 (2014.11); H04N 19/136 (2014.11); H04N 19/61 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method performed by at least one processor of an encoder, the method comprising:
performing, on an input 3D mesh, a symmetry detection process to estimate a partition plane;
partitioning the input 3D mesh into a first side and a second side based on the partition plane, wherein the first side is opposite to the second side, wherein a first vertex on the first side is symmetric to a second vertex on the second side; and
quantizing the first vertex and the second vertex in pairs to reduce a quantization error and symmetry prediction error associated with the first vertex and the second vertex.