This is an image-based approach for capturing the appearance of a walking or running person so they can be rendered realistically under variable viewpoints and illumination conditions.
With this technology developed at the Center for Creative Technology at USC, the subject is filmed with a vertical array of high-speed cameras for about 40 seconds under constantly variable lighting.
The result is a seven-dimensional dataset of the subject under variable time, different illumination, and viewing angles.
This data is processed giving complex values to each pixel deduced from different camera angles/time.
A 3d character is then extracted form that information and relit according to any given environment with very realistic results.
Baby, we are not in Kansas anymore...