[Tom Line]

An easy and practical way of doing this at most venues would be to string a high-tension spectra, amsteel, or kevlar line across above the field and put a go pro on a pulley in the middle of it facing downward.

If FIRST would concur to put a 10 foot tall aluminum pole on top of the driverstation at each end of the field to string the line between, you could easily do this at ANY venue.