Infra-Red Screen

OK so my thoughts are really disjoint, I clearly know the idea I'm trying to share, but I don't know how to say it clearly right now.  So the quick version

Instead of using a green screen behind actors to aid in special effects, have surface coatings that are reflective in very particular spectra of the near infra-red.  By having the coatings occur in the near IR you can have a greater degree of flexibility when it comes to what special effects are added, as well as where they are added.  The other cool advantage, actors could work in slightly more dynamic sets, allowing them to more fully immerse themselves in their environment.

Normally when hollywood films are creating scenes where actors need to be digitally inserted into an alternative environment they will perform their parts in front of either a solid blue or green surface.  The purpose of this surface is to allow computer algorithms to know what parts of the scene need to be replaced by the alternative visuals (yes there some different details when you consider traditional film cameras from back in the day, but this article doesn't deal with it anyways so I'm not covering it*).  While blue/green screening is an incredibly powerful tools, I feel technology gives us opportunities to try a new technique.  

Quick Background  The CCD sensor in traditional video camera's have a much wider sensitivity to the electromagnetic spectrum than the human visual spectrum.  This wider spectrum of sensitivity includes the near infrared range of light, a frequency of light used in TV remotes, security cameras, and Wii controllers.  What is cool is this invisible light can convey a range of information.