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:
Jul. 03, 2018
Filed:
Sep. 26, 2014
Applicant:
A9.com, Inc., Palo Alto, CA (US);
Inventor:
William Brendel, San Francisco, CA (US);
Assignee:
A9.com, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/48 (2006.01); G06F 17/30 (2006.01); G06K 9/32 (2006.01); G06K 9/46 (2006.01); G06T 7/00 (2017.01);
U.S. Cl.
CPC ...
G06K 9/481 (2013.01); G06F 17/30256 (2013.01); G06K 9/3241 (2013.01); G06K 9/4642 (2013.01); G06T 7/0085 (2013.01); G06T 2207/10004 (2013.01); G06T 2207/20116 (2013.01);
Abstract
Various embodiments provide methods and systems for detecting one or more segments of an image that are related to a particular object in the image (e.g., a logo or trademark) and extracting at least one feature point, each of which is represented by one feature point descriptor, based at least upon a contour curvature of the one or more segments. The at least one feature point descriptor can be converted into one or more codewords to generate a codeword database. A discriminative codebook can then be generated based upon the codeword database and utilized to detect objects and/or features in a query image.