Method for improved chroma-key suppression
US6509935B1 · kind B1 · utility
2Cited by
6References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1998 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Mar 3, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/75
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method provides for an improved chroma-key suppression technique. The improved method reduces a halo-like effect which might otherwise appear in a composite image containing a foreground object selected from a first image and a background image selected from a second image. In accordance with the present invention, a chroma-key patch is translated into x, y axis coordinates and one or more pixels of the image in question can be compared to a chroma-key patch and a transition region at least partially surrounding the chroma-key patch to better select suppression signals to be applied in an image processing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.