Patent ID: 11877007
Assignee: TENCENT AMERICA LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 6:
7. An apparatus for coding information of a point cloud, the apparatus comprising:
at least one memory storing computer program code; and
at least one processor configured to access the computer program code and operate as instructed by the computer program code, the computer program code including:
obtaining code configured to cause the at least one processor to obtain the point cloud including a set of points in a three-dimensional space;
isolation determining code configured to cause the at least one processor to determine whether a current node in the set of points is eligible to be coded in an isolated mode, wherein the isolation determining code comprises:
threshold determining code configured to cause the at least one processor to determine that a current partition depth of the current node is smaller than a threshold, wherein the threshold is specified by a high-level syntax, and
sibling determining code configured to cause the at least one processor to determine that the current node has no siblings in an associated octree structure,

encoding code configured to cause the at least one processor to, based on a determination that the current node is eligible to be coded in the isolated mode, code the current node in isolation mode by:
setting a geometry isolation flag that indicates the current node has one or more isolated points coded in the isolated mode,
based on the geometry isolation flag indicating that the current node has the one or more isolated points coded in the isolated mode, determining whether the current node is eligible for a duplicate mode,
based on the current node being eligible for the duplicate mode, determining a number of duplicate points in the current node, and
determining a position of the current node in the three-dimensional space; and

based on a determination that the current node is not isolated, coding the current node in a non-isolation mode.