I think it'd be easier to just take a polaroid from the same viewpoint as the security camera and hang that in front of its optics, as seen in many spy/caper movies, given the technology involved. It basically seems to be a camera to detect where the obstruction is, a projector congruent with that to project the background in those places, plus special retro-reflecting material to get a good image -- which by the way does imply virtually zero performance off axis (even apart from off-axis seeing the wrong image being projected).
(no subject)
Date: 2005-03-26 10:55 pm (UTC)(no subject)
Date: 2005-03-27 12:16 am (UTC)