Apparatus and method for efficient motion estimation for different block sizes
US10621731B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2017 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Jul 17, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/543
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hardware video encoder includes a first inter-picture prediction search processor to perform at least one coarse search at a designated block size. The at least one coarse search utilizes a down-sampled version of an image to determine motion vectors. A second inter-picture prediction search processor performs motion vector refinement searches on pixels of the image for multiple block sizes. Searches of at least one block size utilize the motion vectors. A third inter-picture prediction search processor performs fractional pixel motion vector refinement searches on interpolated values of the pixels of the image for multiple block sizes in parallel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.