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:
Sep. 19, 2006
Filed:
Mar. 28, 2001
Claus Neubauer, Monmouth Junction, NJ (US);
Ming Fang, Princteton Jct., NJ (US);
Claus Neubauer, Monmouth Junction, NJ (US);
Ming Fang, Princteton Jct., NJ (US);
Siemens Corporate Research, Inc., Princeton, NJ (US);
Abstract
A system and method for recognizing markers on, e.g., a PCB (printed circuit board). In one aspect, a system for recognizing a marker in an image comprises an image capture module () for extracting image features associated with an input image of a ROI (region of interest) captured through a lens, an image processor () comprising a first marker recognition processor () for recognizing a marker in the input image based on a normalized correlation and a second marker recognition processor () for recognizing a marker in the input image based on gray value histograms; a training modulefor building template images and histograms that are used by the image processor () to detect a marker in the input image and a database () for indexing and storing trained template images and trained histograms.