The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2002
Filed:
Sep. 03, 1999
Ioannis Pavlidis, Minneapolis, MN (US);
Peter F. Symosek, Shoreview, MN (US);
Bernard S. Fritz, Eagan, MN (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
An infrared detector having two cameras for viewing a scene to detect humans. The cameras focus the scene on their respective pixel arrays. One array is designed with a filter to be sensitive to light from 0.8 to 1.4 microns and the array of the other camera is designed with a filter to be sensitive from 1.4 microns to 2.2 microns. The arrays are co-registered spacially and temporally relative to the viewed scene and pixel transmission dynamics. The spectral powers of the pixels from both arrays are difference weighted and fused into one set of pixels. The fused pixels are thresholded into another set of pixels that have one of two values—black or white. These pixels are entered into a visual display that shows a segment image of a human if in the viewed scene.