I looked at this briefly, and it would be extremely tough. Very few events have the kind of coverage (i.e., number of input videos) you would need to even get s

I looked at this briefly, and it would be extremely tough. Very few events have the kind of coverage (i.e., number of input videos) you would need to even get started on the problem. Plus, the conditions are just about the worst possible -- highly dynamic scene, low light, very unsteady cameras, almost all viewpoints in the same plane, low quality inputs, etc. Note that the switchcam startup mentioned in the other comment is almost completely manual right now, and is more about assembling a "director's cut" version of a concert video, rather than creating 3d. This actually seems more useful to me (although of course more automation would be nice).