US 12,236,650 B2
Encoding of patch temporal alignment for mesh compression
Jun Tian, Belle Mead, NJ (US); Xiang Zhang, Sunnyvale, CA (US); Xiaozhong Xu, State College, PA (US); Chao Huang, Palo Alto, 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 Sep. 23, 2022, as Appl. No. 17/951,942.
Claims priority of provisional application 63/264,421, filed on Nov. 22, 2021.
Prior Publication US 2023/0162403 A1, May 25, 2023
Int. Cl. G06T 9/00 (2006.01); G06F 18/22 (2023.01); G06F 18/24 (2023.01); G06T 7/33 (2017.01)
CPC G06T 9/001 (2013.01) [G06F 18/22 (2023.01); G06F 18/24 (2023.01); G06T 7/337 (2017.01)] 20 Claims
OG exemplary drawing
 
1. A method for mesh encoding, comprising:
receiving at least a first mesh frame associated with a first time instance and a second mesh frame associated with a second time instance, the first mesh frame and the second mesh frame representing a surface of an object with polygons, the first mesh frame comprising a first two dimension (2D) map with first patches having three-dimension (3D) information mapped to 2D, the second mesh frame comprising a second 2D map with second patches having 3D information mapped to 2D;
identifying that a first patch in the first patches is a reference matching patch for a second patch in the second patches;
determining first re-map transform parameters for a temporal alignment of the second patch to the first patch in the first 2D map; and
generating a new second 2D map corresponding to the second 2D map, the new second 2D map comprising a transformed second patch that is transformed from the second patch according to the first re-map transform parameters.