Blown To Bits

The First-Down Line

Friday, January 9th, 2009 by Harry Lewis
Current generic diflucan treatments do not reliably destroy lice eggs, so a person online pharmacy colchicine will typically require more than one treatment application, with about cheapest mirapex a week between applications. A doctor will also need to best price for flovent rule out testicular torsion, a twisting of the testicle that sale cialis causes blood loss and pain. People with medical conditions or find cheap atarax other circumstances that impact the safety of using pain relievers, buy generic gel cost oral should speak with a doctor before taking any medications. Only nasonex people with symptoms should undergo treatment, but the cyst may buy petcam (metacam) oral suspension recur if doctors do not remove it completely. This treatment buy accutane without prescription combines a cochlear implant under the skin near the ear zoloft with a hearing aid worn in the ear. They can accutane pills then remove the clouded lens and replace it with an order aldactone artificial intraocular lens (IOL), allowing the person to see clearly again..

Ever wonder how they draw that yellow line on the field in televised football games these days, showing where the first-down marker is? This video explains it nicely. (The part about encoding the camera orientation as an audio signal is just because there is a built-in audio line from the camera to the truck where the processing happens. In other words, it’s adaptive re-use of a technology that is there for another purpose, but isn’t needed — they don’t actually collect the field audio from the cameras.)

You might think the tricky part would be getting the line to go under the players, rather than on top of them, but that’s actually a digital version of an old television technology, the same one that TV meteorologists use. The image they seem to be standing in front of isn’t really there — they are standing in front of a solid blue background. The technology puts the weather map everywhere that’s blue, so it misses the meteorologist (who never wears blue — if one had a blue scarf on, you’d see the weather map right “through” it). In the case of the football field, it’s a uniformly green color, or maybe blue — either way, not a color in the uniforms. If the field gets muddy, this may not work so well, and the yellow line may show gaps.

Comments are closed.