Virtual presentation system and method
US6335765B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1999 |
| Grant date | Jan 1, 2002 |
| Priority date | — |
| Expiry date | Nov 8, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/75
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A virtual three-dimensional presentation in accordance with the present invention includes three layers, a three-dimensional background layer, a two-dimensional video insert layer, and a three-dimensional foreground layer. A surface, the Z-sphere, is defined in the virtual three-dimensional space of the three-dimensional scene with reference to the aim point of a virtual camera looking at the three-dimensional scene being created. The three-dimensional foreground layer scene may include a key which defines the transparency of objects in the foreground layer. The two-dimensional video insert layer may be generated by positioning a presenter, or other object, in a chroma-key set. The two-dimensional video insert layer may be distorted before being composited with the background and foreground such that elements of the two-dimensional video appear to move across a three-dimensional floor of the three-dimensional scene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.