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:
Nov. 22, 2022
Filed:
Nov. 14, 2017
Basil Leaf Technologies, Llc, Paoli, PA (US);
Basil M. Harris, Paoli, PA (US);
George C. Harris, Ramsey, NJ (US);
Constantine F. Harris, Wyomissing, PA (US);
Edward L. Hepler, Malvern, PA (US);
Philip J. Charron, Philadelphia, PA (US);
Julia D. Harris, Hermitage, TN (US);
Andrew D. Singer, Hopkinton, MA (US);
Basil Leaf Technologies, LLC, Paoli, PA (US);
Abstract
Automated camera-based optical assessment involves color assessment of a physical object using conventional and inexpensive computer hardware such as a smartphone. A specially-configured test card includes a body supporting a reagent pad configured to change to an expected color in response to an enzymatic reaction, and an imaging key adjacent the reagent pad. The imaging key includes color fields including at least one field of the expected color. The hardware captures an image of the test card, and processes the image to identify the reagent pad and color fields, to process a brightness calibration target, to determine color values for the reagent pad and color fields, to calibrate the color values as a function of brightness and/or color by comparison to the brightness and color calibration targets, and to identify a color field most closely matching the reagent pad's color to determine a corresponding test result.