Methods and apparatus for video background subtraction
US10269123B2 · kind B2 · utility
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27Claims
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Key dates
| Filing date | Jan 9, 2017 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Feb 13, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/52
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and an apparatus for background subtraction are described. According to some implementations, the temporal history of a pixel location can be used to classify whether a current input pixel of a current input video frame is a background pixel or a foreground pixel. The classification can be made based on the number of matching pixels in corresponding pixel locations in background history planes. One of the background history planes can be updated according to the classified background pixels and persistent classified foreground pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.