Secondly, a total of 400 pressure distribution maps have been
collected from eight new subjects (five samples per posture per
subject) who did not contribute to the static posture database.
The ranges of subject’s height and weight are 160–191 cm and
65.9–93.6 kg, respectively. These anthropometric values are
within those represented in the static posture database. Shown
in Fig. 8 (solid line in the right graph) are the classification
accuracies averaged over postures as a function of number of
eigenvectors used in classification. Compared with Fig. 7, it
is clear that classification performance is better with subjects
the system is “familiar with.” In an effort to locate the sources
of error, we examined the posture labels associated with not
only the minimum DFPS,