Currently I\'m working on an app for Android phones. We want to detect features of a face. The programm should be able to detect the positions of the eyes, the nose, the mouth a
it is a nice query. I guess if you get the feature points for eyes then we can calculate other points also by knowing the estimated distance of other points from eyes.
See this paper to know more about what I am trying to say: http://klucv2.googlecode.com/svn/trunk/docs/detection%20of%20facial%20feature%20points%20using%20anthropometric%20face%20model.pdf
I hope this helps.