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:
Aug. 05, 2008
Filed:
Jul. 29, 2005
Applicants:
Wojciech Matusik, Cambridge, MA (US);
Morgan Mcguire, Sunnyvale, CA (US);
Inventors:
Wojciech Matusik, Cambridge, MA (US);
Morgan McGuire, Sunnyvale, CA (US);
Assignee:
Mitsubishi Electric Research Laboratories, Inc., Cambridge, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/74 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method extracts an alpha matte from a video acquired of a scene. A set of pinhole or narrow aperture images Iis acquired of the scene with a camera aperture set to a relatively large depth-of-field. The scene includes a background B and a foreground F. A corresponding set of wide aperture images Iis acquired of the scene with the camera aperture set to a relatively small depth-of-field. The respective pinhole and wide aperture images are combined to extract an alpha matte according toα=1+()/().