Method and apparatus for history-based motion vector prediction
US10491902B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2018 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Nov 28, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/58
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of video decoding for a decoder includes acquiring a current picture from a coded video bitstream, where the current picture is segmented into a plurality of units with each unit divided into a plurality of blocks, and the plurality of blocks in each unit being arranged as a grid. The method further includes decoding, for one of the units, a current block from the plurality of blocks using an entry from a history motion vector (HMVP) buffer. The method further includes updating the HMVP buffer with a motion vector of the decoded current block. The method further includes determining whether the current block is at a beginning of a row included in the grid of the one of the units. The method further includes, in response to determining that the current block is the beginning of the row, resetting the HMVP buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.