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:
Sep. 20, 2016
Filed:
Mar. 06, 2014
Applicant:
Pixelworks, Inc., Portland, OR (US);
Inventors:
Xiaojie Sheng, Shanghai, CN;
Guohua Cheng, Shanghai, CN;
Neil Woodall, Newport Beach, CA (US);
Bob Zhang, Santa Clara, CA (US);
Assignee:
Pixelworks, Inc., Portland, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/40 (2006.01); G06T 5/00 (2006.01);
U.S. Cl.
CPC ...
G06T 5/002 (2013.01);
Abstract
To denoise video data, a temporal IIR filter is applied to video data. The temporally filtered frame is used as a guide to spatially filter the video data without introducing temporal artifacts. The spatially filtered frame can then be temporally filtered again using a temporal IIR filter. The results of the second temporal filtering can then be used as a guide to eliminate noise that the spatial filter did not eliminate.