Wanderlust-3d.-interesting ;)

http://www.switched.com/2008/11/03/augmented-reality-brings-pop-up-books-into-the-21st-century/
Augmented reality books
Metaio's Unifeye software uses a standard-issue Webcam and a Windows-based PC, and the system is able to render real-time 3-D images that float above the pages on your computer screen. This 21st century update of the timeless pop-up book requires no special markings or paper to function -- instead, the software uses the camera to recognize the specific dimensions and images on a page and renders the appropriate models and animations. Moving the book around causes the 3-D rendering to follow the pages around, but only as long as they stay within the field of view of the camera. We know, it sounds kinda zany, but it makes sense immediately when you see the video after the break.