Singer will.i.am talks with CNN's Anderson Cooper about his impact on Sen. Barack Obama's campaign.
Made possible by technology from SportVu and Vizrt, the setup is quite extensive. The person being projected into CNN's studio is shot on location by 35 high-def cameras in a ring. The cameras capture the subject's entire body image and transmit it to the studio, synced with cameras in the studio so the image moves properly. Both infrared as well as visual information are used to ensure the image is properly rendered. Dozens of computers on both sides are needed to process all the data for the system to work.