Fig. 2.

(a) The first two rows show a segment of an experiment which involved eating and walking. Signals from 3-axes of the accelerometer are shown on the first row. Second row shows the pushbutton signal used by the participants for annotation of chewing bouts. Here ‘1’ indicates chewing and ‘−1’ indicates no chewing. (b) First row shows a closer look of the chewing segments along with the corresponding pushbutton signals (fourth row).