The image in Fig. 3 is a full pressure map for the static sitting
posture of left leg crossed (after noise removal), shown as a
2-D grayscale image. The top and bottom halves of the pressure
map correspond to the pressure distribution on the backrest and
seatpan, respectively. To understand the orientation of the pressure
map, imagine standing in front of the chair and its occupant,
and unfolding the chair so that the backrest and the seatpan lie in
the same plane. Therefore, the top, bottom, left and right sides
of the pressure map shown in Fig. 3 correspond to the shoulder
area, knee area, right, and left sides of the occupant, respectively.
The size of each full pressure map is 84-by-48 (2 42-by-48),
or 4,032 pixels.