ActiveTracker: Surveillance with Active Camera
W4 is capable of tracking a single target with active camera (which has
pan, tilt ,zoom control) in a large field of regards, When W4 detects
people which appear very small in image space or when a person is about
to leave the current field of view, W4 can give the control of tracking
to ActiveTracker . It zooms into area to get sufficient resolution to recognize
human actions, and actively track them using motion cues by controlling
the rotation of the camera.
Publications :
-
Active Tracker: Surveillance With Active Camera
I. Haritaoglu, D. Harwood, L. Davis,
(In Preparation)
Goal:
-
Tracking people with active camera in large field of regard
-
when peoples movement take them outside of the current field of view .
-
Active control of zoom,pan,tilt of the camera to achive
-
sufficient resolution to recognize human actions.
Surveillance in Large Area:
-
Construct a light-mosaic of the surveillance area before tracking
Active Contol:
-
Small detected region is zoomed for detailed tracking
-
People are tracked by using motion cues during active tracking.
-
3 Frame differencing
-
Motion history template
-
Rotate the camera when people are about to leave te cameras
current field of view
-
recursive least square motion estimation
Zoom
-
Small detected region is zoomed to detailed tracking
Pan/Tilt
-
Pan-Tilt the camera when people is about to leave the cameras current field
of view.
Movies:
(18M)
|
(19M)
|
