A novel validation and calibration method for motion capture systems based on micro-triangulation

Motion capture systems are widely used to measure human kinematics. Nevertheless, users must consider system errors when evaluating their results. Most validation techniques for these systems are based on relative distance and displacement measurements. In contrast, our study aimed to analyse the absolute volume accuracy of optical motion capture systems by means of engineering surveying reference measurement of the marker coordinates (uncertainty: 0.75  mm). The method is exemplified on an 18 camera OptiTrack Flex13 motion capture system.
Source: Journal of Biomechanics - Category: Biomedical Science Authors: Source Type: research