MUMBAI, India, May 30 -- Intellectual Property India has published a patent application (202527021696 A) filed by Beijing Xiaomi Mobile Software Co. Ltd., Beijing, on March 11, for 'method for encoding and decoding a 3d point cloud encoder decoder.'
Inventor(s) include Gao Shuo.
The application for the patent was published on May 30, under issue no. 22/2025.
According to the abstract released by the Intellectual Property India: "A method for encoding and decoding an encoder and decoder for a 3D point cloud into a bitstream. A geometry of the point cloud being de fined in an octree structure having a plurality of nodes having parent child relationships and representing a three dimensional location of an object the point cloud being located within a volumetric space of a three dimensional coordinate system recursively split into sub volumes and containing points of the point cloud wherein a volume is partitioned into a set of sub volumes each associated with a node of the octree based structure and wherein an occupancy information associated with each respective child sub volume indicates whether that respective child sub volume contains at least one of the points the method includes: Obtaining nodes encompassing at least part of the point cloud at depth d in a lexicographic order along each of the axes X Y Z of the coordinate system; Determining a neighbour pattern for each node N k based on a subset of neighbour nodes; Entropy encoding the occupancy information of each node into a bitstream based on the neighbour pattern."
The patent application was internationally filed on Aug. 11, 2022, under International application No.PCT/CN2022/111930.
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