Point cloud encoding and decoding method and system, and point cloud encoder and point cloud decoder

US12262013B2 · kind B2 · utility

Assignee

• GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD. · CN

Inventors

• Hui YUAN · Shanxi, CN
• Xiaohui Wang · Pittsford, US
• Ming LI · Longbeilingcun, CN
• Lu Wang · Beijing, CN
• Qi Liu · New Taipei, TW

Key dates

• Filing date: Mar 23, 2023
• Grant date: Mar 25, 2025
• Expiry date: Mar 23, 2043

Classification

• Technology area (CPC —): General

Abstract

A point cloud encoding method, including: obtaining attribute information about the attributes of a current point in a point cloud; processing the attribute information of the current point to obtain a residual value of the attribute information of the current point; using a target quantization manner, quantizing the residual value of the attribute information of the current point to obtain a quantized residual value of the attribute information of the current point; the target quantization manner comprises at least two of the following quantization manners: a first quantization manner, a second quantization manner, and a third quantization manner.