Detecting foreground regions in video frames
US9824455B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2015 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | May 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30241
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Various examples are directed to systems and methods for determining foreground regions in video frames. A computing device may select from a first frame of a video, a plurality of scene point locations and divide the first frame into a plurality of sections. For a first section of the first frame, the computing device may generate a first vector subspace, basis vectors of the first vector subspace are trajectories of scene point locations in the first section. The computing device may determine that a projection error for a first scene point location in the first section is greater than a projection error threshold and write an indication of the first pixel value to a listing of foreground pixel values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.