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:
Oct. 02, 2012
Filed:
Dec. 21, 2009
Applicants:
Francois Rossignol, Montreal, CA;
Chon Tam Ledinh, Montreal, CA;
Inventors:
Francois Rossignol, Montreal, CA;
Chon Tam Ledinh, Montreal, CA;
Assignee:
Qualcomm Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/00 (2011.01);
U.S. Cl.
CPC ...
Abstract
A system and method for estimating random noise in an image frame or a sequence of image frames are presented. In some embodiments, the method includes performing Global Noise Estimation by comparing current and past filtered frames; converting global noise estimates into local noise estimates using estimated noise parameters based on current input image's local mean intensity; and providing local noise estimates to an adapted generic spatio-temporal filter. A parameter-based noise model is applied in the noise calculation.