> > It should be pretty easy to detect the green
> > turf, not much green elsewhere. In RGB that's
> > very easy, then some simple size or detail-change
> > (movement) stuff to remove the players. Then just
> > put the line over the bright-green non-moving
> > bits. :o)
> > -Roman
>
> Until the game is in a snowstorm, or on a field getting progressively
> muddier, or one of the teams has green in their uniform, or ...

Hmm, snowstorms made me think about this for a while and I came up with a
simple solution to players wearing green- what if you were to use an IR
camera in addition to the camera the 'audience' sees.. that way the coloured
overlay could be restricted by not only the green of the grass, but the
temperature of the object, and in the case of grass vs human there would be
a significant enough difference to be able to decide whether the green
belonged to a persons outfit or whether it was organic.

Jon Baker

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