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.:

US 7551792 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 23, 2009

Filed:

Apr. 27, 2004
Applicants:

Hao-song Kong, Newton, MA (US);

Anthony Vetro, Cambridge, MA (US);

Yao Nie, Newark, DE (US);

Kenneth Eugen Barner, Newark, DE (US);

Inventors:

Hao-Song Kong, Newton, MA (US);

Anthony Vetro, Cambridge, MA (US);

Yao Nie, Newark, DE (US);

Kenneth Eugen Barner, Newark, DE (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/40 (2006.01); G06K 9/56 (2006.01); G06K 9/36 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method reduces artifacts in an input image. A variance image is generated from the input image. The input image is partitioned into a plurality of blocks of pixels. A set of classifications is defined. The set of classifications includes smooth, texture, and edge. A particular classification is assigned to each block of pixels of the input image according to the variance image, to generate smooth blocks, texture blocks, and edge blocks. A fuzzy filter is applied to each pixel of only each edge block.


Find Patent Forward Citations

Kong, Hao-Song. (2009). System and method for reducing ringing artifacts in images (U.S. Patent No. 7551792). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7551792

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