Patent ID: 11922664
Assignee: TENCENT AMERICA LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method for mesh decompression, comprising:
decoding a plurality of maps in two dimension (2D) from a bitstream carrying a mesh frame, the mesh frame representing a surface of an object with polygons, the plurality of maps in 2D comprising at least a decoded geometry map and a decoded attribute map with an adaptive 2D atlas sampling applied;
determining at least a first sampling rate and a second sampling rate according to syntaxes signaled in the bitstream, the first sampling rate being applied to a first region of the mesh frame during the adaptive 2D atlas sampling, and the second sampling rate being applied to a second region of the mesh frame during the adaptive 2D atlas sampling, the first sampling rate being different from the second sampling rate; and
reconstructing, based on the plurality of maps, at least a first vertex of the mesh frame according to the first sampling rate, and a second vertex of the mesh frame according to the second sampling rate.