Parameter selection
     
   
Transformed measurements
 
Head and cam free: Glint-Pupil vector => Gaze dir rel to head
World position of eye information is contained in pupil coords, steering angles and inter-glint distance
 
Several measurement sets tried:
 
pupil positions(4), glint->pupil vector(2)
steering angles(2), inter-glint distance(1), glint-pupil vector(2)