Naked Science Forum

General Science => General Science => Topic started by: turnipsock on 28/06/2008 23:23:18

Title: How does Hawk-Eye work?
Post by: turnipsock on 28/06/2008 23:23:18

Now that wimbers is upon us, does anybody understand how Hawk-Eye works?

Title: How does Hawk-Eye work?
Post by: DoctorBeaver on 29/06/2008 08:05:51

Yes. The people who designed it know how it works. (http://www.roke.co.uk/) Or, more specifically, http://www.hawkeyeinnovations.co.uk/ (http://www.hawkeyeinnovations.co.uk/)

From Wikipedia...

All Hawk-Eye systems are based on the principles of triangulation using the visual images and timing data provided by high speed video cameras located at different locations and angles. Rapid processing of the video feeds means that information can be provided to television viewers or coaching staff in near real time. The pure tracking system is combined with a backend database and archiving capabilities so that it is possible to extract and analyse trends and statistics about individual players, games or ball to ball comparisons etc. Another of Hawk-Eye's key features is that of prediction. The detailed trajectory information already gained from the image processing techniques can be fed into a realistic physical model to provide a highly accurate extrapolation of the likely continuation of the ball's trajectory.

Title: How does Hawk-Eye work?
Post by: turnipsock on 01/07/2008 12:03:06

(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fwww.smh.com.au%2Fffxmedia%2F2005%2F01%2F29%2F29hawk.gif&hash=75759c5a82453a0c83c20edb43e4aff4)

I think its these big grey cameras you see dotted around the centre court. There seems to be a lot of factors involved, such as condtion of the balls and air density.

Title: How does Hawk-Eye work?
Post by: DoctorBeaver on 01/07/2008 19:21:04

Yeah, it's complicated.