Has anyone tried this camera trick??

I want to connect one of those cheap "camera
on a PCB" things, (you know the monochrome
ones with standard composite video output
that you can buy almost anywhere) to a PIC and
use the PIC for image recognition, to detect
the position etc of SMD chips on a white
surface.

My (late night) idea is to get a cheapy
camera and change it's one obvious crystal
to a slower speed one, a very easy job.
So instead of a 15625Hz line rate you get a
1500Hz line rate etc. Obviously going from
25 frames/second to about 2.5 frames/second.

BUT then of course the rate is slow enough
for a PIC to do processing and work as an
effective robotic vision system to detect the
position and orientation of the parts shown
on the camera.

So will it work? I'd love to hear from anyone
who's done this trick or similar camera tricks.
:o)
-Roman

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