Reducing overhead for multiple-hypothesis temporal prediction
US10986343B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2019 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Apr 15, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/573
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for inter-coding video in which transmission bandwidth requirements associated with second motion vectors for bi-directional temporal prediction is reduced. In the method, vector information for one of motion vectors for multi-directional temporal prediction can be transmitted together with information on how to derive or construct the second motion vectors. Thus, rather than sending express information regarding each of the plurality of motion vectors, express information related to only one motion vector along with information related to reconstruction/derivation of the second motion vectors is transmitted, thus reducing bandwidth requirements and increasing coding efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.