Using eye tracking to determine whether person needs more information.
22 Jan 2008 - 6:57am
7 years ago
Hi out there,
I am not sure whether this is the right forum, so sorry in advance if
not. But I saw some questions regarding eye tracking so I hope you
could help me. - BTW do you know forums that are completely dedicated
to eye tracking?
Okay, here is my challenge:
I am working since two years with eye tracking in the context of
dialogue systems. Currently I try to build a system which displays
information for several objects (e.g. buildings, touristic info etc.)
and tries to recognize (via eye tracking) whether the user has enough
information displayed on the screen or whether he/she is seeking for
additional information somehow.
So my question is: Is there a way to determine this by simply ana-
lysing the properties of the scanpath (measuring angles between
saccades, transition densitiy for directness of search, or even better
because simpler solely fixation length or saccadic amplitude) without
the underlying stimulus (making AOIs and such)?
The user wears a head mounted eye tracker (SMI iViewX) and watches the
information on a large screen. Interaction is usual mouse interaction,
clicking on objects for getting context information about them.
I know there's much about reading research, so ones maybe could
distinguish whether the person is reading something. But I think also
need to distinguish whether the person is somewhat relaxed because
he/she is content and has enough information or whether he/she is
seeking for something. Maybe pupillometric data could help here
additionally, but I would be happy not having to base the system on
pupillometric data because I have no experience with that and don't
know how robust that would be.
If anyone of you had some ideas how to do this or some hints where to
further read (papers, names of persons who do research with that) I
would be very thankful.
Thank you in advance and hopefully see you some day.