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:
Aug. 30, 2016
Filed:
Feb. 23, 2015
Applicant:
Axis Ab, Lund, SE;
Inventors:
Assignee:
Axis AB, Lund, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/235 (2006.01); H04N 9/77 (2006.01); H04N 5/243 (2006.01);
U.S. Cl.
CPC ...
H04N 5/2353 (2013.01); H04N 5/2351 (2013.01); H04N 5/2352 (2013.01); H04N 5/243 (2013.01); H04N 9/77 (2013.01);
Abstract
A method for controlling exposure of a camera is disclosed. The method comprises calculating a darkness level and a saturation level with respect to a first image in a video sequence. If the saturation level exceeds a first limit, a target value for a mean intensity value of pixels in images captured by the camera is decreased by an amount which is an increasing function of the darkness level. The decreased target value is used to control the exposure of the camera for images subsequent to the first image in the video sequence, such that the mean intensity value of pixels in the subsequent images approaches the decreased target value.