Thermal measuring and testing – Leak or flaw detection
Reexamination Certificate
2007-12-20
2009-12-29
Verbitsky, Gail (Department: 2855)
Thermal measuring and testing
Leak or flaw detection
C374S121000, C374S045000
Reexamination Certificate
active
07637652
ABSTRACT:
A system and method for detecting glass breakage using thermal imaging is provided. The system includes an infrared image detector for acquiring an infrared image of a monitored area, and a signal processor for processing the acquired images to determine removal of a glass door or window based on a comparison of the thermal signature of the acquired image against the thermal signature of a reference image. Specifically, signal processor subtracts the reference image data from the acquired image data, which results in a substantially uniform image when the acquired image matches the reference image. On the other hand, the image resulting from the subtraction exhibits significant non-uniformity when the acquired image does not match the reference image, as would be the case if the pane of glass of a door or window were broken, removed or opened.
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patent: 2004/0076216 (2004-04-01), Chamberlain et al.
patent: 2005/0207468 (2005-09-01), McCullough et al.
Honeywell International , Inc.
Husch Blackwell Sanders Welsh & Katz
Jagan Mirellys
Verbitsky Gail
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