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:
Dec. 11, 2012

Filed:

May. 13, 2010
Applicants:

Arnab S. Dhua, Sunnyvale, CA (US);

Sunil Ramesh, San Jose, CA (US);

Max Delgadillo, Salinas, CA (US);

Raghavan Manmatha, Belchertown, MA (US);

Inventors:

Arnab S. Dhua, Sunnyvale, CA (US);

Sunil Ramesh, San Jose, CA (US);

Max Delgadillo, Salinas, CA (US);

Raghavan Manmatha, Belchertown, MA (US);

Assignee:

A9.com, Palo Alto, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/00 (2006.01); G06F 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

False positive match rates between query content and content in a collection may be reduced with a minimum content region test and/or a minimum features per scale test. The quality of correlations between query descriptors and content descriptors may be improved with a modified sub-region descriptor construction. Content regions associated with detected content features may be partitioned into disjoint sets of sub-regions that cover the content regions, the sub-regions modified so as to at least partially overlap, and descriptor components generated for the modified sub-regions. Matching of feature-sparse content may be improved by adding blurred versions to the collection.


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