Virtual studio system
US7468778B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Sep 15, 2004 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | Feb 25, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of providing a visual representation of a scene to a participant in a studio is provided, wherein the studio is arranged to be viewed by a camera to provide a camera image and has at least a portion of a background object arranged to be keyed out of the camera image by a keying process. The method includes obtaining an estimate of the viewpoint of the participant; rendering an image of the scene based on the viewpoint of the participant; and projecting at least a portion of the rendered image onto the background object to provide a projected image portion visible to the participant. The projected image portion is projected so as to be keyed out of the camera image by the keying process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.