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 7619691 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 17, 2009

Filed:

Feb. 13, 2001
Applicants:

Marina Marie Pierre Nicolas, Eindhoven, NL;

Michel Wouter Nieuwenhuizen, Eindhoven, NL;

Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 1/409 (2006.01); H04N 5/21 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a method of picture signal enhancement, a picture signal is subjected () to a histogram-based picture signal modification based on a luminance level distribution over a whole picture or a first part of the picture, and the histogram-based picture signal modification is locally adjusted () in dependence on locally measured picture signal properties other than contrast and brightness, the locally measured picture signal relating to second parts of the picture that are each substantially smaller than the whole picture or the first part of the picture, the second parts being within the whole picture or the first part of the picture. Preferably, the second parts are individual pixels.


Find Patent Forward Citations

Nicolas, Marina Marie Pierre. (2009). Picture signal enhancement (U.S. Patent No. 7619691). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7619691

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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