Validity of a depth-camera based approach for segment lengths estimation

The present study examines the validity and reliability of a depth-camera based approach for segment lengths estimation of the pelvis and the lower extremity. For the evaluation, a Kinect sensor and an optical motion capture system were used to automatically deduce the segment lengths of young subjects. The results revealed mean errors below 0.04 m and strong reliability for all segment lengths. Furthermore, the results were compared to a commonly used scaling approach for segment lengths determination, partly matching and partly even excelling its results.