Re:Virtual lane graphics for swimming with CSS3
by dsl on Monday March 04, 2013 @12:50PM
(#5319383)
They don't use green screen. Before the game with the field empty they do a pan and scan of the entire field from every camera. That gives the system a baseline for change detection that works regardless of team colors.
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Re:Virtual lane graphics for swimming with CSS3
by Zimahl on Monday March 04, 2013 @01:25PM
(#5319635)
By 'green-screen' I meant that they take a small snapshot of the field and use those colors as a replacement. A scan before the game would do them very little good, especially in open-air stadiums where game conditions can change immediately.
Well apparently it does them a lot of good, because that is what they do. Check out the Wikipedia article on First and Ten I posted further up in the thread.