Daily Living Movement Recognition for Pedestrian Dead Reckoning Applications

Figure 3

Representation of the proposed CWT-based movement segmentation procedure. The waveform (light-blue) represents the acceleration signal along the -axis (Figure 2) during a walking activity. The CWT-based segmentation aims to detect the singularities which refer to the movement boundaries (green circles), while discarding the other ones (red circles); afterwards, the acceleration signal included between the lower pair of the selected singularities can be extracted as individual movement.