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Football pitch graphics brain-buster
I do most of the stadium advertising for a local football club.
They´ll be live on national TV at least 3 times between October and the end of the season and have asked me to do advertising on the pitch.
It´s to be done as you see on Rugby/Football/Cricket pitches so that the graphics appear as if it´s a normal triangular banner frame when viewed from a TV camera centrally placed in the press-box about 20 metres above the pitch.
In this particular case, the graphics will be on the far side of both goalposts
facing at an angle towards the camera. The club don´t want painting directly onto the grass, so I´ll probably print it on a thin banner material like Tyvec pegged into the turf.
I know the graphics are done by hugely distorting the letters/logo, but have no idea how to calculate the "mathematics" of it.
Any help as to how I go about this would be most appreciated.
Chris:police: Mod-Edit
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9 Replies
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Don’t know about a formula Chris.
Wouldn’t a banner be dangerous though? Are they aware that you can get sprays that don’t damage the grass?
http://www.screwfix.com/prods/26275/Pai … aint-750ml
Cans work upside down for ease of use. Have used these and they are very handy. -
They insist it can´t be painted as the image will gradually disappear when the grass is mowed.
The want something they can use repeatedly as the sponsors will be the same for each game.
I caught a close-up of a banner type thing while watching a game an Premiership match at the weekend.
Thanks anyway, Harry.
Chris -
I’m intrigued by the way its done, the distortion must be huge and the letters etc must look totally bazaar close up.
Alan D -
I can’t think of the right terms to search this with.
I want to say it’s something like parallax distortion.
Like the way sidewalk chalk artists create a picture that looks horribly stretched until you are smack on top of it.
Or the way STOP is painted all stretched out at intersections but looks correct from in a car.
I wish I’d have paid more attention at school.
😳
Love….Jill -
The only unmathmatical (word ?) way of doing it that I can think of would be to have one person standing in the camera position guiding someone down at pitch side using tape to outline the outer shape of the logo ….then once you are happy take measurements from there and redraw on the computer
maybe 😕
edited to add this…..http://www.hmgpaint.com/news/hmg%27s-paint-away-takes-to-the-field-at-twickenham-&-murrayfield
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I asked about this on another forum and best advice so far is from a guy who did one in an American Football Ground. Seems you have to know where the camera will be and he projected the image and marked it out at night.
The ‘camera position’ thing kinda seems right to me, thinking about it.
I will keep an eye on the thread and see if anyone else comes up with a formulaic way of doing it. -
Heres a start:
http://www.anamorphosis.com/what-is.html
http://www.moillusions.com/2009/05/how- … twork.html
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Thanks for the replies.
After searching google have found some interesting stuff.
The method to do this is called "Inverse Perspective" advertising.
You probably saw a recent example of inverse perspective in England showing a girl crossing the road. It´s intention was to slow down traffic.
To do it for a football pitch is a completely different ball-game, and so ridiculously complicated (for me, anyway) that even if an end result could be achieved, would it be worth the trouble just for 2 graphics?
I´ll phone a couple of companies today that might be able to help.Chris
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Thanks!
That was even bugging me last night when I was trying to go to sleep.
Now we at least have a name for it!
😀
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