Identifying moving objects in a video using volume growing...

Details Identifying moving objects in a video using volume growing... Identifying moving objects in a video using volume growing...

2005-06-07

2005-06-07

Johns, Andrew W. (Department: 2621)

Image analysis

Applications

Target tracking or detecting

Reexamination Certificate

active

06904159

ABSTRACT:
The method combines volume growing with change detection. After an input video is filtered to remove noise, a spatio-temporal data structure is formed from the video frames, and markers are selected. From the markers, volumes are grown using a color similarity based centroid linkage method. Change detection masks are then extracted from adjacent frames in the video using local color features. The change detection masks are intersected with each volume, to determine the number of changed pixels only in portions of the masks that lie within that volume. If the number of changed pixels in the intersection exceeds a threshold, then the volume is identified as a moving object.

REFERENCES:
patent: 5612744 (1997-03-01), Lee et al.
patent: 6075875 (2000-06-01), Gu
patent: 6349113 (2002-02-01), Mech et al.
patent: 6501794 (2002-12-01), Wang et al.
patent: 6785329 (2004-08-01), Pan et al.
patent: 2003/0081836 (2003-05-01), Averbuch et al.

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