Fig. 2

An example of the smoothed trajectory \(f_\sigma (t)\) Eq. 3 (green line) for lateral (left/right) direction hand movements with \(\sigma = 20 s\) (left) \(\sigma = 0.5 s\) (center) and \(\sigma = 0.02 s\) (right) compared to the real trajectory as recorded by the camera (purple line). The black box indicates the area of interest depicted in the next row