Video compositor
US6909438B1 · kind B1 · utility
70Cited by
70References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2001 |
| Grant date | Jun 21, 2005 |
| Priority date | — |
| Expiry date | Nov 18, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/76
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system is disclosed for blending two image that makes use of a color map which indicates colors in a foreground can be mixed with the background and how much of each source to mix. One embodiment of the invention restricts the use of the color map to only pixels in the foreground that correspond to a graphic (or effect) in the background. Another embodiment makes use of a gray scale matte which stores blending values for each pixel in the foreground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.