Encoding and decoding method, apparatus, and device
US12075085B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 17, 2020 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | Dec 23, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/577
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An encoding and decoding method, apparatus, and device is disclosed. The method comprises: if characteristic information of a current block meets a specific condition, performing the following steps to acquire a target prediction value of the current block or a sub-block of the current block: determining a first original prediction value based on first unidirectional motion information of the current block, and determining a second original prediction value based on second unidirectional motion information of the current block; determining a horizontal velocity based on the first original prediction value and the second original prediction value; determining a vertical velocity based on the first original prediction value and the second original prediction value; acquiring a prediction compensation value based on the horizontal velocity and the vertical velocity; and acquiring the target prediction value based on the first original prediction value, the second original prediction value and the prediction compensation value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.