In Barcelona, tourists passing by a square can stand on a platform, pose and have a plastic statue made of them in minutes. There’s a video below of the experience.
Several Microsoft Kinects process the 3D images and send the model to a 3D printer. The total cost for the installation is a few thousand dollars. Two disruptive technologies power this exhibit: low cost, high fidelity 3D imaging & input and inexpensive 3D printing. Both of these have been brought to market in the past year or so.
Machine vision has come a long way as costs have plummeted, processing power has grown geometrically and algorithms have improved. The applications seem endless.