Combine a video camera's mechanical utility with the technology that draws instant-replay diagrams on your television screen during sporting events, and you'd have a good idea what researchers at Oxford University are cooking up.
Citation:
Benjamin Alfonsi, "SLAM Dunk? Real-Time Mapping Technology Could Take Gaming, Movies to New Level," IEEE Distributed Systems Online, vol. 6, no. 3, pp. 4, Mar. 2005, doi:10.1109/MDSO.2005.16