3-D Baseball Card Webcam System Answered
In an effort to bring baseball card trading into the 21st century, and aid falling revenues, playing card manufacturer Topps developed an interactive 3-D baseball card experience using specialized cards and a computer webcam.
"Since the 1950s, Topps has sold baseball trading cards filled with photos and stats, bringing the game to life. Now the company is bringing its cards to life."
"Beginning Monday, collectors who hold a special Topps 3D Live baseball card in front of a webcam will see a three-dimensional avatar of the player on the computer screen. Rotate the card, and the figure rotates in full perspective. It's called 'augmented reality,' a combination of a real image with a virtual one."
Webcam Brings 3-D to Topps Sports Cards The New York Times
Topps 3-D Live Toppstown.com