Do you Want a 3D scanner, but it cost higher! do you thinking like that now no problem , a new iPhone app turns your face or any object into a 3D computer model that can easily be edited or even reproduced with a 3D printer.The app, dubbed Trimensional, was created by Grant Schindler, a computer scientist at the Georgia Institute of Technology. It uses the iPhone's screen to project four different patterns of light on to the object being scanned and snaps photos with the front-mounted camera. The app then compares the lighting patterns and stitches the photos together to produce the 3D model.
Original resources:http://www.newscientist.com/