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:
Jul. 12, 2016
Filed:
Mar. 21, 2011
Applicants:
Prasenjit Dey, Bangalore, IN;
Sriganesh Madhvanath, Bangalore, IN;
Inventors:
Prasenjit Dey, Bangalore, IN;
Sriganesh Madhvanath, Bangalore, IN;
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06F 3/01 (2006.01); G06F 3/03 (2006.01);
U.S. Cl.
CPC ...
G06K 9/00281 (2013.01); G06F 3/012 (2013.01); G06F 3/0304 (2013.01); G06K 9/00335 (2013.01);
Abstract
Provided is a method of detecting lip activity. The method determines magnitude of optical flow in lip region and at least one non-lip region of a detected face. The ratio of magnitude of optical flow in lip region and at least one non-lip region is compared against a threshold. If the ratio is found to be greater than the threshold, lip activity of the detected face is recognized.