How can digital camera neutralizing technology prevent unwanted photography?

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Researchers at the Georgia Institute of Technology have developed a prototype device capable of blocking digital cameras in specific areas, aiming to prevent movie piracy and unauthorized photography. This technology could find applications in theaters and other venues to deter unwanted video and still photography. Additionally, there are discussions about the use of cell phone neutralizers in similar settings to combat cheating during tests and to eliminate distractions in lecture halls. Some educators have already implemented cell phone jammers to maintain focus during classes. However, it is noted that this camera-blocking technology could potentially be circumvented by using a new type of camera lens that projects images onto a translucent screen before capturing them.
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System Blocks Unwanted Video & Still Photography

Camera neutralizing technology could halt movie piracy and clandestine photography

Atlanta (June 17, 2006) — Researchers at the Georgia Institute of Technology have completed a prototype device that can block digital-camera function in a given area. Commercial versions of the technology could be used to stymie unwanted use of video or still cameras. [continued]
http://www.gatech.edu/news-room/release.php?id=1017

Also, regarding the recent conversations about text messaging and cheating on tests, there are cell phone neutralizers as well. They are or will soon be in theaters, restaurants, etc.
 
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Physics news on Phys.org
Sweet.

I know a few professors put cell-phone jammers in their lecture halls to just flat out stop the use of cell phones during lectures and tests.
 
"It could also be used in business settings—for instance, to stop amateur photography where shopping-mall-Santa pictures are being taken."

This "technology" can be defeated with a new type of camera lens: 1) first lens projects image onto translucent screen; 2) second lens focuses screen image onto CCD. :-p
 
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