Face Cataloger
The level of security at a facility is directly related to how well the
facility can keep track of “who is where?” The “who” part of this
question
is typically addressed through the use of face images for recognition
either
by a person or a computer face recognition system. The “where” part of
this question can be addressed through 3D position tracking. The “who
is
where” problem is inherently multi-scale, wide angle views are
needed
for location estimation and high resolution face images for
identification.
A number of other people tracking challenges like activity
understanding
are multi-scale in nature.
An effective system to answer “who is where?” must acquire
face images
without constraining the users and must closely associate the face
images
with the 3D path of the person. We have built a protype system called
FACE
CATALOGER to demonstrate the utility of "who is where?" system. Our
face
catalogger system uses computer controlled pan-tilt-zoom cameras driven
by a 3D wide-baseline stereo tracking system. The pan-tilt-zoom cameras
automatically acquire zoomed-in views of a person’s head, while the
person
is in motion within the monitored space. The face catalogger system
obtains
a close-up view of the frontal view of the face to be associated with
the
track of the person. Thus, the 3D track information of the
person can be used to reason about a person's whereabouts while the
close-up
view of the person being tracked can be used for identifying the
person.
Face cateloger demo (MPEG1 video
7MB)
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