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:
Sep. 20, 2016

Filed:

Aug. 31, 2010
Applicants:

Changhu Wang, Beijing, CN;

Zhiwei LI, Beijing, CN;

Lei Zhang, Beijing, CN;

Inventors:

Changhu Wang, Beijing, CN;

Zhiwei Li, Beijing, CN;

Lei Zhang, Beijing, CN;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01); G06K 9/46 (2006.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
G06F 17/30259 (2013.01); G06F 17/30277 (2013.01); G06K 9/00402 (2013.01); G06K 9/4604 (2013.01); G06K 9/4609 (2013.01); G06K 9/4671 (2013.01);
Abstract

Sketch-based image search may include receiving a query curve as a sketch query input and identifying a first plurality of oriented points based on the query curve. The first plurality of oriented points may be used to locate at least one image having a curve that includes a second plurality of oriented points that match at least some of the first plurality of oriented points. Implementations also include indexing a plurality of images by identifying at least one curve in each image and generating an index comprising a plurality of oriented points as index entries. The index entries are associated with the plurality of images based on corresponding oriented points in the identified curves in the images.


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