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. 25, 2012
Filed:
Sep. 16, 2009
Zhengyou Zhang, Bellevue, WA (US);
Aswin Sankaranarayanan, Greenbelt, MD (US);
Qing Zhang, Lexington, KY (US);
Zicheng Liu, Bellevue, WA (US);
Qin Cai, Clyde Hill, WA (US);
Zhengyou Zhang, Bellevue, WA (US);
Aswin Sankaranarayanan, Greenbelt, MD (US);
Qing Zhang, Lexington, KY (US);
Zicheng Liu, Bellevue, WA (US);
Qin Cai, Clyde Hill, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Techniques and technologies for tracking a face with a plurality of cameras wherein a geometry between the cameras is initially unknown. One disclosed method includes detecting a head with two of the cameras and registering a head model with the image of the head (as detected by one of the cameras). The method also includes back projecting the other detected face image to the head model and determining a head pose from the back-projected head image. Furthermore, the determined geometry is used to track the face with at least one of the cameras.