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.

Date of Patent:
Oct. 24, 2017

Filed:

Jul. 28, 2015
Applicant:

Alibaba Group Holding Limited, George Town, KY;

Inventors:

Gang Cheng, Beijing, CN;

Rufeng Chu, Beijing, CN;

Lun Zhang, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/62 (2006.01); G06K 5/00 (2006.01); G06T 7/00 (2017.01); G06K 9/32 (2006.01); G06K 9/38 (2006.01); G06K 9/36 (2006.01);
U.S. Cl.
CPC ...
G06T 7/0083 (2013.01); G06K 9/3233 (2013.01); G06K 9/38 (2013.01); G06K 2009/363 (2013.01);
Abstract

Embodiments of the present application relate to a method, apparatus, and system for detecting a specified image identifier. The method includes retrieving a target image to be detected from a predetermined area, binarizing the target image to be detected to obtain a target binary image to be detected, calibrating connected domains of the target binary image to be detected, successively retrieving image features of candidate connected domains, and comparing the image features corresponding to the candidate connected domains to image features of a standard specified identifier image, wherein the candidate connected domains are determined based at least in part on the calibration of the connected domains, and determining a candidate connected domain as the location of the specified identifier image based at least in part on the comparison of the image features corresponding to the candidate connected domains to image features of the standard specified identifier image.


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