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:
Feb. 03, 2009
Filed:
Feb. 20, 2004
Applicants:
Trausti Kristjansson, Newton, PA (US);
Hagai Attias, San Francisco, CA (US);
John R. Hershey, Seattle, WA (US);
Inventors:
Trausti Kristjansson, Newton, PA (US);
Hagai Attias, San Francisco, CA (US);
John R. Hershey, Seattle, WA (US);
Assignee:
Microsoft Corporation, Redmond, WA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); H04N 13/02 (2006.01); H04N 5/225 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus are provided for learning a model for the appearance of an object while tracking the position of the object in three dimensions. Under embodiments of the present invention, this is achieved by combining a particle filtering technique for tracking the object's position with an expectation-maximization technique for learning the appearance of the object. Two stereo cameras are used to generate data for the learning and tracking.