Patent ID: 11869223
Assignee: APPLE INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 9:
10. A device comprising:
one or more processors; and
memory storing instructions that when executed by the one or more processors, cause the one or more processors to perform operations comprising:
receiving a data structure representing a plurality of points in a point cloud in three-dimensional space;
decoding the data structure to determine one or more sequences of bits, wherein each of the sequences of bits represents a position of one of the points in one of the dimensions of the three-dimensional space, and wherein the data structure is decoded according to a tree data structure;
partitioning at least one of the sequences of bits into a first portion of bits and a second portion of bits;
scaling each of the second portions of bits according to a quantization step size, wherein the quantization step size is determined according to an exponential function having a quantization parameter value as an input and the quantization step size as an output;
generating a reconstructed point position of a first point of the plurality of points by combining, for the first point, the first portion of bits and the scaled second portion of bits corresponding to the first point; and
outputting the reconstructed point position of the first point.