RE: CCTV/PC's

[REB.Barnett@xxxxxxx]

> Just 8-bit, monochrome.  I suspect mono makes it much more
> straightforward,
> there's probably no significant advantage in using colour for
> detection.

Just a quick idea that comes to mind... ...and which will probably be shot
down almost as quickly... If you use colour, even though light intensity
might change over the day, the overall colour make-up of the picture ought
not too, unless something is added to the picture - e.g. a burglar wearing
a
bright red look-at-me jumper. Thus you could simply sum the amount of red
green blue in the picture and look for significant changes in only one
colour.

This makes the assumption that CCD cameras are not affected by changes in
colour balance which I'm guessing is not constant as the sun pops in and
out
behind filters (clouds) and sunsets. You could eliminate this using a
second
camera dedicated to measuring the white balance as a control. It also
assumes that burglars don't wear camoflauge clothing, but then a more
conventional movement tracker could be foiled this way too...

Am I spouting rubbish?

Ray.

------------------------------------------------------------------------
Would you like to save big on your phone bill -- and keep on saving
more each month? Join beMANY! Our huge buying group gives you Long Distance
rates which fall monthly, plus an extra $60 in FREE calls!
http://click.egroups.com/1/2567/7/_/2065/_/957789076/
------------------------------------------------------------------------