US 7,321,386 B2 | ||
Robust stereo-driven video-based surveillance | ||
Anurag Mittal, Plainsboro, N.J. (US); Nikolaos Paragios, Plainsboro, N.J. (US); and Visvanathan Ramesh, Plainsboro, N.J. (US) | ||
Assigned to Siemens Corporate Research, Inc., Princeton, N.J. (US) | ||
Filed on Jul. 31, 2003, as Appl. No. 10/632,002. | ||
Claims priority of provisional application 60/400185, filed on Aug. 01, 2002. | ||
Prior Publication US 2004/0125207 A1, Jul. 01, 2004 | ||
Int. Cl. H04N 5/225 (2006.01) |
U.S. Cl. 348—169 | 20 Claims |
1. A method of tracking an object comprising:
providing a plurality of cameras;
determining an image from each camera;
determining a common plane in the images;
determining a parallax for scene points across the images;
incorporating the parallax as a feature in a background model;
determining a change in the background model incorporating the parallax; and
tracking the object according to the change, wherein the change in the background model incorporating the parallax corresponds
to the object, wherein the tracking of the object according to the change further comprises,
obtaining a measure from the parallax that is invariant to motion of the object through the image, and
tracking the object relative to the invariant measure.
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