Inventors:
John S. Moore - Middleton WI, US
Victor W. Marsh - Fitchburg WI, US
Richard T. Daly - Madison WI, US
International Classification:
H04N 13/00
Abstract:
A virtual three-dimensional presentation in accordance with the present invention includes three stereoscopic layers, a stereoscopic background layer, a stereoscopic video insert layer, and a stereoscopic 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, the distance between the cameras, and the distance from the camera of the video scene, of a virtual stereoscopic camera looking at the three-dimensional scene being created. The separation of the virtual stereoscopic camera lens and distance to the aim point are set based on the stereoscopic cameras that are creating the video insert layer. The stereoscopic three-dimensional foreground layer scene may include a key which defines the transparency of objects in the foreground layer. The stereoscopic video insert layer may be generated by positioning a presenter, or other object, in a chroma-key set which is captured with a stereoscopic camera. The stereoscopic video insert layer may be distorted before being composited with the background and foreground such that elements of the stereoscopic video appear to move across a three-dimensional floor of the stereoscopic three-dimensional scene.