Finally, PTAM (Parallel Tracking And Mapping) is a technology from Oxford University that allows three dimensional data to be gleaned from a two dimensional input. I have been involved in projects using custom 3D cameras when I worked at UnitedVisualArtists, and am fascinated to see how much can be done with more conventional systems.
A related pair of projects:
A research project from Adobe and the University of Washington, all to do with how to use this kind of technology to edit videos in some intriguing ways.
A great Google Tech Talk, entitled “Simple interactive 3D modeling for all“.
The possibilties for new interfaces are obvious, I am particularly interested in applying them to experiences and art installations. Imagine combining these technologies with the projection tek behind projects like Laser Tag.