Patent ID: 11967120
Assignee: TENCENT AMERICA LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 8:
9. A computer system for decoding point clouds, the computer system comprising:
one or more computer-readable non-transitory storage media configured to store computer program code; and
one or more processors configured to access the computer program code and operate as instructed by the computer program code, said computer program code including:
receiving code configured to cause the one or more processors to receive, from a bitstream, data corresponding to a point cloud;
first determining code configured to cause the one or more processors to determine a plurality of decoding points corresponding to a geometry position,
wherein the plurality of duplicate points have a same geometry position, but more than one attribute value, and
wherein the plurality of duplicate points are sorted according to attribute values of an attribute of the plurality of duplicate points;

first reconstructing code configured to cause the one or more processors to reconstruct, based on the data, a first attribute value of a first duplicate point from among the plurality of duplicate points corresponding to a single geometry position;
obtaining code configured to cause the one or more processors to obtain at least one prediction residual corresponding to at least one remaining attribute value of at least one remaining duplicate point from among the plurality of duplicate points;
second reconstructing code configured to cause the one or more processors to reconstruct the at least one remaining attribute value based on the reconstructed first attribute and the at least one prediction residual; and
decoding code configured to cause the one or more processors to decode the data corresponding to the point cloud based on the reconstructed first attribute value and the reconstructed at least one remaining attribute value.