The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 2026
Filed:
Oct. 06, 2020
Beijing Xiaomi Mobile Software Co., Ltd., Beijing, CN;
Xidian University, Shaanxi, CN;
Wei Zhang, Shaanxi, CN;
Mary-Luc Georges Henry Champel, Beijing, CN;
BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing, CN;
XIDIAN UNIVERSITY, Shaanxi, CN;
Abstract
A method for encoding and decoding, an encoder and decoder for a point cloud is disclosed. The method for encoding a point cloud to generate a bitstream of compressed point cloud data, the point cloud's geometry being represented by an octree-based structure with a plurality of nodes having parent-child relationships by recursively splitting a volumetric space containing the point cloud into sub-volumes each associated with a node of the octree-based structure, including: determining context information of a current node including plane position context information, the plane position context information of the current node being determined according to an occupancy of a neighboring node directly adjacent to the current node and an occupancy of at least one sibling node having the same parent node as the current node; and entropy encoding the occupancy information of the current node based on the determined context information to produce encoded data for the bitstream.