A motion capture system for sport training and rehabilitation

This paper presents a motion capture system which provides both an accurate measurement of some motion parameters of a human arm and a graphical reconstruction of the movement on a synthetic model. The hardware uses several MEMS inertial sensors whose data are processed using mathematical tools based on quaternions. Measurements on a prototype have proven the system to be very accurate, since through the sensors placed on the joints of the arms it was possible to extract a video motion very faithful to the real.