At 03:54 AM 2/7/01 +0000, you wrote:
>Consider to be the following a dumb thing I'm tossing out with hopes that
>someone else can use it as a seed for a smarter thing.. as of right now I
>can't think of a way to make this work, but:
>Would it be possible in some way to "encrypt" light? Put certain lights in
>your home which flash and interfere with eachother and do all kinds of
>things such that an outsider looking at it with the naked eye will see
>just a chaotic light show, and be unable to tell where objects are and how
>they are moving. But to someone wearing "decrypting glasses", the light
>will be decoded, so that objects and their movements can be discerned.
>Like scrambling/descrambling a TV signal, but with the light reflecting
>off real objects in real time in the real world.
>
>---------------------------------------------------
>Zeb Haradon (zebharadon@hotmail.com)
This might work, if you take into account the persistence of vision of the
outside observer - but you are dooming the person inside to wearing shutter
glasses fro the whole of their "privacy".
If you used bright flashes at a rate likely to cause bad reactions, such as
epilepsy in an unfiltered person, that might be a plus. It would not be
hard to build a set of LCD shutters that would slice out these flashes in
real time, though. It would probably only be effective on someone who did
not expect the lights to act this way.
I don't know if you could reliably fool a TV camera like this..
Chuck Kuecker
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