Virtual multiway scaler compensation
US8139100B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2008 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Jan 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/152
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In various embodiments, a multipoint control unit (MCU) may arrange incoming video images into a composite video image and define their respective coordinate information including the size of the original composite video image. The MCU may subsequently scale the composite video image. The coordinate information for the scaled composite video image may be reformatted for the resized video images. When the endpoint receives the scaled composite video image, the endpoint may detect the actual size of the scaled composite video image and may determine the new coordinates of the video images in the scaled composite video image using a ratio of the size of the original composite video image to the actual size detected by the endpoint. These new coordinates may then be used to separate the images in the scaled composite video image to use in compositing a new composite video image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.