Multi-frame optical flow network with lossless pyramid micro-architecture
US12148175B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2022 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Feb 11, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20084
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method includes obtaining a first optical flow vector representing motion between consecutive video frames during a previous time step. The method also includes generating a first predicted optical flow vector from the first optical flow vector using a trained prediction model, where the first predicted optical flow vector represents predicted motion during a current time step. The method further includes refining the first predicted optical flow vector using a trained update model to generate a second optical flow vector representing motion during the current time step. The trained update model uses the first predicted optical flow vector, a video frame of the previous time step, and a video frame of the current time step to generate the second optical flow vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.