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(Mental Floss)   The biggest question today is not which team will win the Super Bowl, which commercial will be the best, or even how many people will flip over to the Puppy Bowl. No, the real question is how do they get the yellow first down line on the screen?   (mentalfloss.com) divider line 49
    More: Interesting, Puppy Bowl, Super Bowl, first down, hockey rink, sports broadcasting, purists  
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3147 clicks; posted to Geek » on 02 Feb 2014 at 2:46 PM (22 weeks ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



49 Comments   (+0 »)
   
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2014-02-02 11:39:32 AM
Next up: Explaining the blue "line of scrimmage" and red "4th down conversion" lines.

Because those were too hard to mention in the same article.
 
2014-02-02 11:41:28 AM
How many boobs will become visible during the half time show?
 
2014-02-02 11:49:35 AM

johnsoninca: Next up: Explaining the blue "line of scrimmage" and red "4th down conversion" lines.

Because those were too hard to mention in the same article.


Huh, I didn't realize that much work actually went into it.  I figured it was just a green-screen effect (since the field is green after all) done by some guy in the broadcast booth.
 
2014-02-02 11:50:38 AM

johnsoninca: Next up: Explaining the blue "line of scrimmage" and red "4th down conversion" lines.

Because those were too hard to mention in the same article.


Article is from 2011
 
2014-02-02 11:54:23 AM
Puppy Bowl airs at 3pm, Eastern time.  Super Bowl begins 6ish, Eastern time.  If you survive the mayhem and excitement of the first, you can hang on and catch the lesser of the two competitions.
 
2014-02-02 12:02:34 PM
I actually went to a football game with a grown man and had to explain that the yellow line is only on TV...
 
2014-02-02 12:12:23 PM
At that Eagles game played in a blizzard a few weeks back, they were actually using that technology to project the entire gridiron onto the field, because it was completely invisible otherwise.  I hadn't realized they could go that far with it,.
 
2014-02-02 02:49:08 PM

jake_lex: At that Eagles game played in a blizzard a few weeks back, they were actually using that technology to project the entire gridiron onto the field, because it was completely invisible otherwise.  I hadn't realized they could go that far with it,.


Me either. Computers are awesome.
 
2014-02-02 02:50:47 PM
Isn't there a cat bowl also?
 
2014-02-02 02:55:04 PM
I actually liked FoxTrax when they used it for broadcasting NHL games...but then again, I'm not just a casual hockey viewer. (Go Blackhawks!)
 
2014-02-02 02:57:39 PM

wiseolddude: Isn't there a cat bowl also?


Kitty half-time show.
 
2014-02-02 02:58:05 PM
IIRC, this was an issue when a Vikings-Bears game was moved to the University of Minnesota's stadium after the Metrodome collapsed a few years ago.  They didn't have an existing model of the stadium, so they couldn't use the yellow line during the game.

Maybe I'm completely mis-remembering this.
 
2014-02-02 02:59:54 PM

wiseolddude: Isn't there a cat bowl also?


Kitten Bowl just finishing on Hallmark Channel. Repeats at 3 and 6 PM EST.
 
2014-02-02 03:00:35 PM
On the same grounds, can't they come up with a better way to mark which player has a radio in their helmet other than those ugly, lime green circles? It compromises the aesthetic of the uniform. The Seahawks are already lime green, so the dot compliments the helmet. The Broncos are bright orange, so despite a blue helmet, that ominous green dot tattooed on Manning's helmet completely draws my eye to it like an infection.
 
2014-02-02 03:04:15 PM

Rev.K: How many boobs will become visible during the half time show?


Shouldn't be too hard to spot them since only boobs watch the half time show
 
2014-02-02 03:12:04 PM

Rev.K: How many boobs will become visible during the half time show?


I don't think anyone is all that interested in seeing Bruno Mars' boobs. It would be awesome, though, if the Chili Peppers brought their old socks out of retirement for the event.
 
2014-02-02 03:12:30 PM
Bruno Mars...nipple slip....good luck getting rid of that image.....
 
2014-02-02 03:16:04 PM

BMulligan: Rev.K: How many boobs will become visible during the half time show?

I don't think anyone is all that interested in seeing Bruno Mars' boobs. It would be awesome, though, if the Chili Peppers brought their old socks out of retirement for the event.


Bruno who?
 
2014-02-02 03:27:22 PM

Needlessly Complicated: BMulligan: Rev.K: How many boobs will become visible during the half time show?

I don't think anyone is all that interested in seeing Bruno Mars' boobs. It would be awesome, though, if the Chili Peppers brought their old socks out of retirement for the event.

Bruno who?


Some guy who writes jingles for car commercials.
 
2014-02-02 03:27:50 PM
Magic?
 
2014-02-02 03:33:09 PM
s2.favim.com
 
2014-02-02 03:39:15 PM

rhiannon: Needlessly Complicated: BMulligan: Rev.K: How many boobs will become visible during the half time show?

I don't think anyone is all that interested in seeing Bruno Mars' boobs. It would be awesome, though, if the Chili Peppers brought their old socks out of retirement for the event.

Bruno who?

Some guy who writes jingles for car commercials.


Says the person named after a Stevie Nicks song.
 
2014-02-02 03:39:41 PM
I can never remember if the yellow line is official or not.
 
2014-02-02 03:41:34 PM

BMulligan: rhiannon: Needlessly Complicated: BMulligan: Rev.K: How many boobs will become visible during the half time show?

I don't think anyone is all that interested in seeing Bruno Mars' boobs. It would be awesome, though, if the Chili Peppers brought their old socks out of retirement for the event.

Bruno who?

Some guy who writes jingles for car commercials.

Says the person named after a Stevie Nicks song.


That'd be beer commercials.
 
2014-02-02 03:45:57 PM

balki1867: IIRC, this was an issue when a Vikings-Bears game was moved to the University of Minnesota's stadium after the Metrodome collapsed a few years ago.  They didn't have an existing model of the stadium, so they couldn't use the yellow line during the game.

Maybe I'm completely mis-remembering this.


I don't know if that's true or not, but there should have been an existing model, since Minnesota football games do get televised most of the time.  Perhaps whoever aired that game didn't have access to it.
 
2014-02-02 03:49:49 PM
I've never been much of a football fan, but I often wondered about that. I figured it was something along the lines of the explanation in TFA. Neat read.
 
2014-02-02 04:01:36 PM
Look at this farkin' dog. Look at it.

www.corgihuskymix.com
 
2014-02-02 04:10:57 PM

wiseolddude: Isn't there a cat bowl also?


firstrowus1.eu

Got streams?
 
2014-02-02 04:15:02 PM
Live from the Puppy Bowl locker room.  They are already getting amped up for the big game.

http://www.ustream.tv/channel/apl-puppies
 
2014-02-02 04:22:24 PM
Don't eat the yellow first down line.
 
2014-02-02 04:30:41 PM
When a short article needs two links to "How Stuff Works" to explain the technical stuff, it's just a sad attempt to generate ad views and a waste of my time.

Source: http://www.howstuffworks.com/first-down-line.htm
 
2014-02-02 04:49:51 PM

KiwDaWabbit: Look at this farkin' dog. Look at it.

[www.corgihuskymix.com image 650x408]


That's just wrong.

/owner of two huskies
//without the dwarf legs
 
2014-02-02 05:14:51 PM

KiwDaWabbit: Look at this farkin' dog. Look at it.

[www.corgihuskymix.com image 650x408]


Cute, Corgi/Husky mix?
 
2014-02-02 05:23:33 PM
I've seen times when a green team--say, Michigan State--is playing, and the line or part of it is projected on the player's uniform momentarily.

I haven't noted it in a couple of years, so presumably they're getting better at making that color distinction.
 
2014-02-02 05:37:42 PM
It's computers.

(San Dimas High School football rules)
 
2014-02-02 05:43:30 PM
There's a crew that very quickly runs out and paints that line between plays and paints the old line green again.  That's what I told my kid, anyway.
 
2014-02-02 05:52:34 PM

grumpytroll: Bruno Mars...nipple slip....good luck getting rid of that image.....


It's a shame it isn't a Robin Thicke halftime show, and maybe one of the female dancers might accidentally cover a nipple briefly.
 
2014-02-02 05:52:57 PM
Ps4 playroom is a more advanced computer vision application than sportvision's yellow line.
 
2014-02-02 05:59:48 PM
I am just happy to know that the two states to legalize pot are coming together for a super bowl.
 
2014-02-02 06:22:44 PM
Kitty Halftime show with Keyboard Cat doing Bruno Mars was inspired.

Shyla for MVP.
 
2014-02-02 06:27:37 PM
DNRTFA.  A little company in Mountain View, CA, a few blocks away from Google's main campus, called Sportvision puts up a few of these on screen graphics besides the lines on the field (yellow for first down, blue of line of scrimmage).  They also do a few of the displays for other sports.  This is a competitive market with several companies and a few of the broadcast networks all working together and competing to put stuff up on the screen.  Those team logos with a play countdown clock on the field during an offensive drive are different by network and the info put up on NASCAR and even America's Cup races are done by several companies.

///CSB:  The son of a friend works at Sportvision.
 
2014-02-02 06:49:37 PM

A. Snatchfold: KiwDaWabbit: Look at this farkin' dog. Look at it.

[www.corgihuskymix.com image 650x408]

Cute, Corgi/Husky mix?


Yeah, it's a "Horgi". I'd rather call it a "Corsky", but whatever.
 
2014-02-02 07:54:29 PM

MattyBlast: I actually liked FoxTrax when they used it for broadcasting NHL games...but then again, I'm not just a casual hockey viewer. (Go Blackhawks!)


Go outside and stab yourself in the eyes. You don't deserve them.
 
2014-02-02 08:24:06 PM

KiwDaWabbit: Look at this farkin' dog

e. Look at it.

[www.corgihuskymix.com image 650x408]


ftfy
 
2014-02-02 09:13:39 PM

b0rg9: wiseolddude: Isn't there a cat bowl also?

Kitty half-time show.


http://www.hallmarkchannel.com/kittenbowl
 
2014-02-02 10:35:41 PM

cameroncrazy1984: jake_lex: At that Eagles game played in a blizzard a few weeks back, they were actually using that technology to project the entire gridiron onto the field, because it was completely invisible otherwise.  I hadn't realized they could go that far with it,.

Me either. Computers are awesome.


Yep.  I figured they used the gridiron to guide the positioning.  That's some pretty good programming there.
 
2014-02-03 05:27:44 AM
Back when these graphics first appeared, I was watching a game with a friend. He was wondering how they did it, and I thought about it for a minute (I'm a software engineer by trade). It wasn't too hard to figure out; obviously the system needed to know the horizontal and vertical angles of the camera and the zoom amount, and have a model of the field and where the cameras are located. Simple idea, really. My friend (an electrician) disagreed, and insisted that the video was fed into a computer, which analyzed it frame-by-frame in real time. I tried to explain the impossibility of his idea, and the astronomical amount of processing power you would need to even attempt it, but he wouldn't listen. So, I wagered him $10 that I was correct, and we looked up the answer (it was on howthingswork.com, IIRC). When he saw that I was right, he got p!$$3d, and has yet to pay me the $10.

CSB.
 
2014-02-03 10:30:18 AM
I good weather, I think the thing could be done automatically, without any sensors. Just recognize the field, read where the camera is on the field, and use the perspective coming in on the live video from existing lines. You can approximate the crown by looking at the other lines on the field. The system might require a learning session before the game, where the camera operator would pan the field, and maybe do a color selection to ensure only the field gets marked.

The way they're doing it now seems complex and error-prone.
 
2014-02-03 10:19:14 PM

DrPainMD: Back when these graphics first appeared, I was watching a game with a friend. He was wondering how they did it, and I thought about it for a minute (I'm a software engineer by trade). It wasn't too hard to figure out; obviously the system needed to know the horizontal and vertical angles of the camera and the zoom amount, and have a model of the field and where the cameras are located. Simple idea, really. My friend (an electrician) disagreed, and insisted that the video was fed into a computer, which analyzed it frame-by-frame in real time. I tried to explain the impossibility of his idea, and the astronomical amount of processing power you would need to even attempt it, but he wouldn't listen. So, I wagered him $10 that I was correct, and we looked up the answer (it was on howthingswork.com, IIRC). When he saw that I was right, he got p!$$3d, and has yet to pay me the $10.

CSB.


You can do it optically, it's pretty much what matchmoving is.  They do it in the movies when they want to insert a 3D element into a shot in which the camera is moving.  I think you should be able to do it in real time these days (probably not when the yellow line first came out), although I imagine that getting the position/angle/zoom information from the camera would be more reliable.
 
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