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:
Jan. 23, 2001
Filed:
Apr. 17, 1998
Craig Weaver Harris, Lake Forest, CA (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
A method of recognizing an unknown object includes the following steps: receiving from a camera, a first image of the unknown object which is comprised of an array of pixels of multiple magnitudes that lie within a certain range; generating a second image from the first image by scaling the pixel magnitudes in the first image such that differences in the scaled pixel magnitudes are increased and the average pixel magnitude lies near the middle of the pixel range; and, determining the width of the unknown object by detecting an area in the second image where the pixel magnitudes exceed a certain threshold level. Based on that width, a third image is generated from the second image, by adjusting the magnification of the second image such that it has a predetermined standard width; and the unknown object is identified if a correlation between the third image and a reference exceeds a threshold.