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:
Dec. 09, 2014
Filed:
Oct. 09, 2012
Yewon Communication Co., Ltd., Seoul, KR;
Other;
Abstract
An apparatus and method for automatically recognizing a QR code without a need to control the distance for recognition in relation to one QR code or two or more QR codes. The apparatus includes a photographing unit obtaining a surrounding image the QR code including recognition points and surroundings, a QR code recognition unit converting the surrounding image into a grayscale image of a pixel unit, converting the grayscale image into a histogram indicative of a distribution map according to the luminosity of each pixel, extracting only pixels having a luminosity value concentration level corresponding to a threshold or higher based on the histogram, setting the extracted pixels as a candidate pixel group, searching the set candidate pixel group for recognition points through a recognition marker, when the recognition points are conceived, recognizing a region in which the conceived recognition points are placed as a QR code.