(04-27-2016, 10:21 AM)PaulP link Wrote:I just watched the first 3 minutes of the "smart reply" on the AFL website - in that time, they show both ends of the ground, and to me the padding looks about twice the height of the umpire.
And that is where my interest in this issue ends.
Yep boring now.
If anyone wants really accurate figures download the free program Tracker Video Analysis. You can calibrate the video using the goal-square lines which are known to be 6.4m x 9m then it will use the video frame rate, velocity and the law of gravity to calculate the height of the ball any point above the ground backwards from the last point of impact. There are all sorts of tools built into the program to compensate for errors of perspective, fish-eye, etc., etc.. Obviously to keep things simple you are better to choose a sequence where the camera isn't panning, but even then if you can't get one fixed points like ground markings can be used as a static reference.
"Ruck, ruck, ruck, ruck ....... Ruck, ruck, ruck, ruck"