Point Density Analysis (PDA): Shape Recognition

Important Note
It is unknown whether this technique was invented before but it would be rather surprising if not, feedback would be appreciated on this matter.

Abstract
Outlined and explained is the gesture recognition technique invented for and deployed in wayV version 0.1.

This technique does not use neural nets but instead finds the difference between the input gesture and a list of known gestures. A match is the gesture with least percentage difference.

Further refinements are suggested including a maximum threshold difference and adding weights to the difference points via radius distances either used linearly or squared.