A rich source of information, as yet unused for activity
recognition, is the movement of the eyes. The movement
patterns our eyes perform as we carry out specific
activities have the potential to reveal much about the
activities themselves—independently of what we are
looking at. This includes information on visual tasks, such
as reading [6], information on predominantly physical
activities, such as driving a car, but also on cognitive
processes of visual perception, such as attention [7] or
saliency determination [8]. In a similar manner, location or
a particular environment may influence our eye movements.
Because we use our eyes in almost everything that
we do, it is conceivable that eye movements provide useful
information for activity recognition