Imaging surveillance system and method for event detection...

Details Imaging surveillance system and method for event detection... Imaging surveillance system and method for event detection...

2008-05-20

2008-05-20

Bella, Matthew C. (Department: 2624)

Image analysis

Applications

Target tracking or detecting

Reexamination Certificate

active

10720411

ABSTRACT:
A surveillance system and method is provided for detecting and event and then capturing an image of the event under low illumination conditions. A camera captures a current image and a prior reference image under low illumination conditions using a long exposure time and compares the current and reference images to determine whether an event has occurred in the current image. An illumination source is activated upon the detection of an event to provide artificial illumination. The illumination allows an additional event image to be captured using a shorter exposure time.

REFERENCES:
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patent: 5909244 (1999-06-01), Waxman et al.
patent: 6081606 (2000-06-01), Hansen et al.
patent: 6082894 (2000-07-01), Batko et al.
patent: 7193652 (2007-03-01), Hori et al.
patent: 2001/0046310 (2001-11-01), Shima
patent: 2004/0086152 (2004-05-01), Kakarala et al.

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