To do so, Dr Kanade needs to employ 51 video cameras just for his small experimental arena.

ECONOMIST: Looking out, looking in

So far, Dr Kanade has not managed to film an entire game of anything (indeed, in the space available, the biggest field of play that would fit is a pool table).

ECONOMIST: Looking out, looking in

Unfortunately, the processing required to perform the integration of all 51 two-dimensional images into a three-dimensional one is so demanding that the computers Dr Kanade has available take five days to produce ten seconds-worth of video.

ECONOMIST: Looking out, looking in