Method and apparatus for processing a video frame in a video file
US9514540B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2015 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | May 22, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20076
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method and apparatus for processing a video frame in a video file, the method comprising: for each predetermined numerical value of one or more predetermined numerical values, comparing the video frame with a video frame spaced prior to the video frame by the predetermined numerical value of frames to obtain a first inter-frame difference; comparing the video frame with a video frame spaced after the video frame by the predetermined numerical value of frames to obtain a second inter-frame difference; and for each pixel of the video frame, obtaining a confidence map associating the video frame by the predetermined numerical value based on a smaller value of the first inter-frame difference and the second inter-frame difference; and determining, at least based on a value of each pixel in one or more of the confidence maps associated with a corresponding predetermined numerical value, whether the pixel belongs to a foreground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.