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:
Jan. 21, 2003
Filed:
Mar. 03, 1998
Applicant:
Inventors:
Bruce E. Busby, Los Altos, CA (US);
Robert A. Williams, Los Altos, CA (US);
Assignee:
Microsoft Corporation, Redmond, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/75 ;
U.S. Cl.
CPC ...
H04N 9/75 ;
Abstract
A method provides for an improved chroma-key suppression technique. The improved method reduces a halo-like effect which might otherwise appear in a composite image containing a foreground object selected from a first image and a background image selected from a second image. In accordance with the present invention, a chroma-key patch is translated into x, y axis coordinates and one or more pixels of the image in question can be compared to a chroma-key patch and a transition region at least partially surrounding the chroma-key patch to better select suppression signals to be applied in an image processing operation.