Method and apparatus for history-based motion vector prediction with parallel processing
US10440378B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2018 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Dec 7, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/52
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method includes acquiring a current picture from a coded video bitstream, where the current picture is segmented into a plurality of units, each unit is divided into a plurality of blocks, and the plurality of blocks in each unit being arranged as a grid. The method further includes decoding, 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 a condition is satisfied, the condition specifying that (i) the current block is a beginning of a row included in the grid of the one of the units, and (ii) the plurality of blocks are decoded in accordance with a parallel process. The method further includes, in response to determining that the condition is satisfied, resetting the HMVP buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.