
63-1
63.1 Introduction
Understanding human activities and behavior has long been a research goal. In terms of daily lives,
awareness of human activities can support many diverse applications. For example, in a home environ-
ment,
us
ers
ca
n
be re
minded
to pe
rform
ac
tivities
(e.g., ta
king
me
dicine)
. In a ho
spital
en
vironment,
a
patient can be reminded to complete an exercise rehabilitation program. Employing a person to moni-
tor other persons’ activity 24 h a day is unrealistic; therefore, the automated, automatic recognition of
hu
man
a
ctivities
i
s
i
mportant
a
nd
n
ecessary
.
Although it is natural for humans to recognize their activities, it is not ...