[undercoverbrother]

Originally Posted by getbak

Hawkeye is a fully visual system. It "sees" the ball and tracks its path using multiple high-speed cameras and resolves the ball's location into 3D space.

Hockey pucks are obscured from sight a lot of the time, especially in situations where a system like that would be most useful.

In a tennis game, the players are actively trying to not get too close to the ball with their bodies. In hockey, there are players whose entire role is to throw their bodies in front of and on top of the puck.

That sort of visual system can work in soccer because the ball is so large relative to the size of the players. Even if the ball is obscured from one or two cameras, there will still be other cameras that have sight of it.

I am still surprised there isn't an internal tracking system. I am surprised the puck doesn't have a "chip" (for want of a better word) that works similar to GPS.