Person height calculation from size of marker
The distance to the camera could be measured from the size of the marker, so that also the height of a person could be determined (taking the angle of view into account). If this works well also the bobbing while walking could be measured. Good marker for this could be the ArocuCode, because the library has the calculation of orientation of the marker already included.
Currently blocked by #349
Edited by Schrödter, Tobias