Described herein is a technique for creating a 3D face model using images obtained from an inexpensive camera associated with a general-purpose computer. Two still images of the user are captured, and two video sequences. The user is asked to identify five facial features, which are used to calculate...http://www.google.co.uk/patents/US7142698?utm_source=gb-gplus-sharePatent US7142698 - Rapid computer modeling of faces for animation
