For head tracking of yaw, pitch, roll with GY-80 or GY-85 with Arduino UNO
Please use this manaul http://sourceforge.net/projects/gy80facetrack/files/FTR_DIY_based_Tracker.pdf/download and this software http://sourceforge.net/projects/gy80facetrack/files/FTR_DIY_based_Tracker.zip/download