Efficient sub-pixel motion vector search for high-performance video encoding
US12238335B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2023 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Jun 8, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/52
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are systems and techniques for efficient real-time codec encoding of video files. In one embodiment, the techniques include obtaining a first plurality of motion vectors of a first resolution, generating a second plurality of motion vectors of a second resolution, and calculating a first cost of the motion vector using a first cost function of a first size. The techniques include selecting a subset of motion vectors of the second plurality of motion vectors, calculating a second cost using a second cost function of a second size, and generating a plurality of combined motion vectors based on the subset of motion vectors. The techniques include calculating a third cost using the second cost function of the second size, selecting a final motion vector, and generating, based on the selected final motion vector, a block of predicted pixels that approximates a block of source pixels of an image frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.