Encoding/decoding method, encoding apparatus, decoding apparatus, and system for video with forward and backward reference blocks
US11206420B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2019 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | Nov 5, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/573
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Encoding methods, decoding methods, encoding apparatuses, and decoding apparatuses are provided, for a video image with forward and backward reference blocks. One encoding method includes: determining an optimal integrated neighboring block for a current block based on a motion vector integration technology; determining, based a prediction direction of the optimal integrated neighboring block, a motion vector derivation mode that needs to be used by a decoder; correcting a motion vector of the current block based on the motion vector derivation mode, and determining a residual between a predicted value and an original value of the current block based on the corrected motion vector, thereby encoding the current block. According to the technical solutions, a more accurate predicted value is obtained by correcting the motion vector, and a smaller residual is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.