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:
May. 30, 2006
Filed:
Mar. 22, 2002
Applicants:
Lawrence E. Albertelli, Owego, NY (US);
David L. Ii, Owego, NY (US);
Nina Kung, Owego, NY (US);
Inventors:
Assignee:
Lockheed Martin Corporation, Bethesda, MD (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 26/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system and method to binarize the bar code image in the presence of noise in order to render bar codes more detectable in the presence of noise. The method of this invention includes the steps of applying a gradient detecting filter to the bar code image, obtaining a filtered image, and then, adaptively binarizing the bar code image utilizing the corresponding filtered image to obtain an adaptive threshold. A system that implements the method is also described.