3D Digital Face Replacement & Camera Tracking 
Grafting a Human’s Face onto a Lizard or Another Creature.

Part 1 - Introduction
Part 2 - Tracking the Camera Motion
Part 3 - Tracking the Head Motion & Camera Solving
Part 4 - Importing the Tracking Data into 3ds Max
Part 5 - Attaching a Model to the Tracking Data
Part 6 - Making the Material for the Head (1)
Part 7 - Making the Material for the Head (2)
Part 8 - Making the Material for the Head (3)
Part 9 - Compositing in After Effects
Part 10 - Liquify in After Effects

Download movie here

Part 3 - Tracking the Head Motion & Camera Solving

This tutorial goes on to cover camera tracking the motion of the lizard’s head, separate to the background (which was tracked to get the camera information for 3ds Max). I then go on to showing how to solve the motion, ready to be exported as data to your 3D program.