Point cloud encoding method and decoding method, and encoder and decoder
US12219141B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2023 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Jun 12, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided are a point cloud encoding method and decoding method, and an encoder and a decoder. The encoding method comprises: processing attribute information of a target point in a point cloud, so as to obtain a predicted residual of the attribute information of the target point; quantizing the predicted residual on the basis of a quantized weight of the target point and a quantized stride of the target point, so as to obtain a quantized residual of the attribute information of the target point, wherein the quantized weight of the target point is the weight used when weighting the quantized stride of the target point; and encoding the quantized residual, so as to obtain a code stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.