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This NY Times article describes several technological innovations the USFL is trying out that may eventually get to the NFL.
There are several kinds of tech involved.
Ball Spotting:
3-D player and ball tracking:
Other things:
There are several kinds of tech involved.
Ball Spotting:
- several optical cameras (Bolt6 company)
- Lidar (light detection and ranging)
3-D player and ball tracking:
- Radio-frequency identification (RFID) chips in helmets and balls
Other things:
- Mikes and video cams on player, coaches, and refs: this stuff is mostly just fun.
- A ball that glows, only visible to TV viewers, when it crosses goal line.
- Lasers to show if a field goal is good.
- A laser line on the field to show the first down line and light up a ball when it crosses it.
- Watch like devices on refs for rapidly getting this information on the field.