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. 16, 2014
Filed:
Apr. 29, 2011
David Marwood, San Francisco, CA (US);
Richard Tucker, New York, NY (US);
David Marwood, San Francisco, CA (US);
Richard Tucker, New York, NY (US);
Google Inc., Mountain View, CA (US);
Abstract
A system and method of use are provided for generating video fingerprints that are robust to rotation, stretching, scaling, flipping and other affine transformations. The system and method are based on determining points of interest for a target video image and a collection of images stored in a database. A method of identifying a copied video image is also provided through comparison of the fingerprint of the target video image with fingerprints of images in a database. The method of video fingerprinting involves: defining points of interest from a video image, determining an oriented bounding area encompassing said points of interest that have been transformed by the same transformations used to produce the oriented bounding area and creating a fingerprint by encoding the points of interest as Gray Code such that similar images have a small Hamming distance and dissimilar images have a large Hamming distance. The identification of points of interest are provided by a number of techniques including segmentation, identification of affine covariant regions and scale invariant features.