Some of those answers are known
The frame rate is 50fps so at top speed the fastest players can run 30cm (if there is a fast defender running the other way then up to 60cm margin of error).
Offside is from when the player kicks (makes contact) with the ball but due to the above framerate that point almost always happens in between frames. For the Pukki goal the ball had left Mario's foot by about a yard.
The line is one pixel wide so thickness doesn't matter. They just bulk it out for TV.
Biggest problem is none of these but the fact the operator has to guess the furthest forward part of two players bodies and then also the lowest point (for centre of gravity to draw the line). For both there have been clear mistakes for some of these marginal calls.
There's also a problem with the camber of the pitch. According to the premier league website they mapped each pitch before the season started but they will obviously change in places over the season.
Posted By: Kangol Canary on December 30th 2019 at 13:55:11
Message Thread
- few thoughts on VAR (Other Football) - Kar1, Dec 30, 11:44:59
- Some of those answers are known (Other Football) - Kangol Canary, Dec 30, 13:55:11
- ^TBF (n/m) (Other Football) - Jumbo1, Dec 30, 13:33:01
- Only bothered with the last paragraph as too many words (Other Football) - SCC 28, Dec 30, 11:50:35
- Having a camera on a track down the side of the pitch has an issue or two. (Other Football) - APB, Dec 30, 12:33:15
- 2 cameras & triangulation? Overhead? (n/m) (Other Football) - dennis moore, Dec 30, 12:54:36
- No-one wants to see mass punch ups (Other Football) - duke of york, Dec 30, 12:48:18
- that shows how annoyed I am about it! (n/m) (Other Football) - Kar1, Dec 30, 12:08:58
- The only VAR decision in our favour that I can think of is (Other Football) - emmaroyds, Dec 30, 12:27:01
- It disallowed a Chelsea goal, which the ref had given by mistake. (Other Football) - APB, Dec 30, 12:37:04
- The only VAR decision in our favour that I can think of is (Other Football) - emmaroyds, Dec 30, 12:27:01
- Having a camera on a track down the side of the pitch has an issue or two. (Other Football) - APB, Dec 30, 12:33:15
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