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. 15, 2015

Filed:

Feb. 05, 2013
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Gang Luo, Yorktown Heights, NY (US);

Rong Yan, Elmsford, NY (US);

Philip Shi-Lung Yu, Chappaqua, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/66 (2006.01); G06K 9/62 (2006.01); H04N 21/234 (2011.01); G06K 9/00 (2006.01); H04N 21/44 (2011.01); H04N 21/454 (2011.01); H04N 21/4545 (2011.01);
U.S. Cl.
CPC ...
H04N 21/23418 (2013.01); G06K 9/00765 (2013.01); H04N 21/44008 (2013.01); H04N 21/4542 (2013.01); H04N 21/45452 (2013.01);
Abstract

Techniques are disclosed for detecting new events in a video stream that yield improved detection efficiency in real time. For example, a method determines whether a given event is a new event in a video stream. The video stream includes a plurality of events. A first step extracts a first set of features (e.g., text features) from the given event. The first set of features is computationally less expensive to process as compared to a second set of features (e.g., image features) associated with the given event. A second step computes one or more first dissimilarity values between the given event and one or more previous events in the video stream using only the first set of features when one or more first dissimilarity criteria exist. A third step determines whether the given event is a new event based on the one or more computed first dissimilarity values.


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