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:
Mar. 01, 2022
Filed:
Jun. 30, 2021
Zebra Technologies Corporation, Lincolnshire, IL (US);
Harry E. Kuchenbrod, Kings Park, NY (US);
Zebra Technologies Corporation, Lincolnshire, IL (US);
Abstract
A method and apparatus for differentiating focus drift of an imaging system from position changes of an object of interest. The method includes obtaining an image of an object of interest and identifying a region of interest in the image, wherein the region of interest contains an indicia indicative of the object of interest. The processor determines an image quality of the image and analyzes the indicia and determines a pixel measurement of the indicia. The processor then compares the pixel measurement of the indicia to a reference pixel measurement. Based on the comparison, the processor determines that the image quality of the image results either from a difference in a distance of the object from the imaging system or from focusing drift of the imaging system.