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:
Jul. 02, 2013
Filed:
Aug. 05, 2010
Applicants:
Ragnar H. Jonsson, Laguna Niguel, CA (US);
Derek T. Walton, Bolton, MA (US);
Trausti Thormundsson, Irvine, CA (US);
Inventors:
Ragnar H. Jonsson, Laguna Niguel, CA (US);
Derek T. Walton, Bolton, MA (US);
Trausti Thormundsson, Irvine, CA (US);
Assignee:
Conexant Systems, Inc., Newport Beach, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 1/23 (2006.01); H04N 1/46 (2006.01); H04N 1/387 (2006.01); G06K 9/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system and method for defringing chromatic aberrations that occur in imaging devices such as scanners. The system comprises shift filters to shift lines in the various color planes together. In addition in each color plane, a spread filter is used to compensate for the unequal point spread functions of each color. Furthermore, the results can be enhanced by filtering in the luminance-chrominance space.