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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
by dsl 14y ago
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.
- Zimahl 14y agoBy '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.
- dsl 14y agoWell 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.
- Zimahl 14y agoYou could also watch a Youtube[1] video explaining (near the end) what happens when field conditions change - fog, mud, etc. [1] https://www.youtube.com/watch?v=Vh9af_gXxlM https://www.youtube.com/watch?v=Vh9af_gXxlM