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:
Sep. 27, 2011
Filed:
Jun. 18, 2007
Parvez Ahammad, Berkeley, CA (US);
Chuohao Yeo, Berkeley, CA (US);
Kannan Ramchandran, El Cerrito, CA (US);
S. Shankar Sastry, Berkeley, CA (US);
Parvez Ahammad, Berkeley, CA (US);
Chuohao Yeo, Berkeley, CA (US);
Kannan Ramchandran, El Cerrito, CA (US);
S. Shankar Sastry, Berkeley, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
An apparatus for detecting an action in a test video. In an illustrative embodiment, the apparatus includes a first mechanism for receiving a query for a particular action via a query video. A second mechanism employs motion vectors associated with the test video to compute one or more motion-similarity values. The one or more motion-similarity values represent motion similarity between a first group of pixels in a first frame of a query video and a second group of pixels in a second frame of the test video based on the motion vectors. A third mechanism uses the one or more similarity values to search for the particular action or similar action in the test video. In a more specific embodiment, another mechanism aggregates the similarity values over a predetermined number of frames to facilitate estimating where the particular action or version thereof occurs or is likely to occur in the test video.