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

Claim 16:
17. A non-transitory computer readable medium having stored thereon a computer program for decoding point clouds, the computer program configured to cause one or more computer processors to:
receive, from a bitstream, data corresponding to a point cloud;
determine a plurality of duplicate 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;

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;
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;
reconstruct the at least one remaining attribute value based on the reconstructed first attribute and the at least one prediction residual; and
decode the data corresponding to the point cloud based on the reconstructed first attribute value and the reconstructed at least one remaining attribute value.