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:
Feb. 16, 2016
Filed:
Feb. 07, 2013
Applicant:
Mitsubishi Electric Research Laboratories, Inc., Cambridge, MA (US);
Inventors:
Fatih Porikli, Watertown, MA (US);
Akshay Soni, Cambridge, MA (US);
Assignee:
MITSUBISHI ELECTRIC RESEARCH LABORATORIES, INC., Cambridge, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/62 (2006.01); G06T 5/00 (2006.01); G06T 5/20 (2006.01);
U.S. Cl.
CPC ...
G06T 5/002 (2013.01); G06T 5/20 (2013.01); G06K 9/62 (2013.01); G06T 2207/20012 (2013.01); G06T 2207/20021 (2013.01); G06T 2207/20076 (2013.01);
Abstract
An input image is denoised by first constructing a pixel-wise noise variance map from the input image. The noise has spatially varying variances. The input image is partitioned into patches using the noise variance map. An intermediate image is determined from the patches. Collaborative filtering is applied to each patch in the intermediate image using the noise variance map to produce filtered patches. Then, the filtered patches are projected to an output image.