Use your Nose as Mouse 07Oct04

Screenshot, Source: synapse.vit.iit.nrc.ca

Extract:

Nouse™, which stands for 'Nose as Mouse' and is pronounced ['naus], is the NRC developed concept that yielded a solution to this previously unresolved problem. It is based on tracking the so-called convex-shape nose feature, which is the extremum of a convex surface of the nose tip. Thus defined nose feature is rotation and scale invariant, it is seen at all times regardless of the face orientation. It also can be tracked with the sub-pixel precision guaranteed, and as such it makes it possible to operate with your nose as with a mouse (or a pen) or a joystick (or a pointer). Besides, thanks to the mother Nature, 1) the nose tip is unique in its appearance, 2) it is located right in the middle of the face and between the eyes, and 3) it is also(!) the furthest point on our face from the axis of face rotations, which all make this part of our face the best for computers to detect and, at the same time, the most convenient for humans to operate with!

related links:
Nose as Mouse