Method and apparatus for encoding video by downsampling frame resolution
US8681866B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2011 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Feb 11, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/593
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The subject invention has both apparatus and method aspects. A first embodiment of the method aspect is for encoding a video signal having a plurality of frames, each frame having a plurality of blocks. The method includes identifying a first frame from the plurality of frames as an I-frame, the first frame having an original resolution. The method also includes determining a variance for the first frame using a processor. If the variance exceeds an intra threshold: (a) selecting a frame resolution for the first frame that is less than the original resolution, and (b) encoding the first frame using the selected frame resolution is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.