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:
Apr. 07, 2020
Filed:
Apr. 28, 2016
Applicant:
Graphiclead Llc, Newark, DE (US);
Inventors:
Gonzalo R. Arce, Newark, DE (US);
Gonzalo J. Garateguy, Framingham, MA (US);
Daniel L. Lau, Lexington, KY (US);
Sean Xiaolu Wang, Wilmington, DE (US);
Assignee:
GraphicLead LLC, Newark, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 1/00 (2006.01); G06K 19/06 (2006.01);
U.S. Cl.
CPC ...
G06T 1/0028 (2013.01); G06K 19/06037 (2013.01); G06K 19/06103 (2013.01); G06T 2201/0051 (2013.01); G06T 2201/0065 (2013.01); G06T 2201/0202 (2013.01);
Abstract
Disclosed are a method and apparatus for embedding a graphic representation into a two dimensional matrix code by modifying the luminance of individual pixels in the image according the values of a provided QR code image. The modified luminance values are determined by an optimization procedure which minimizes a visual distortion metric with respect to the original graphic representation while maintaining the value of a model for the probability of decoding and detection error below a specified limit.