The System for Augmented Reality Motion Measurements Visualization

The system which allows for visualisation of range of motion examination has been developed. The visualisation is clear and in simple manner presents measured angles in the joints. Measurement is based on data from motion capture system about location of the markers on the patient. Markers are place at key locations in this way that connection of next three form an angle which vertex is situated in the joint. Image from the camera directed at the patient is extended by adding lines, angles and the numerical values of the current value of the angle of flexion of the limb directly on the limbs of the patient. The accuracy of the measurement depends mainly on the accuracy of the motion capture system and is of order of tens of micrometres. The precision of the measurement and repeatability is a advantage of the system because the classical methods based on the use of goniometer are dependent on the individual interpretation of the physiotherapist. In addition the test may be carried out in movement such as walking and for more limbs than one at a time. During of the examination patient is not limited in movement by the measuring device.