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. 06, 2018
Filed:
Apr. 01, 2016
Applicant:
Axis Ab, Lund, SE;
Inventors:
Jonas Hjelmström, Staffanstorp, SE;
Andreas Nilsson, Häljarp, SE;
Assignee:
Axis AB, Lund, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/262 (2006.01); G06T 5/00 (2006.01); H04N 5/357 (2011.01); H04N 17/00 (2006.01); G06T 3/00 (2006.01); H04N 5/217 (2011.01); G06T 7/80 (2017.01); G06T 7/13 (2017.01);
U.S. Cl.
CPC ...
H04N 5/2628 (2013.01); G06T 3/0093 (2013.01); G06T 5/006 (2013.01); G06T 7/13 (2017.01); G06T 7/80 (2017.01); H04N 5/217 (2013.01); H04N 5/3572 (2013.01); H04N 17/002 (2013.01);
Abstract
A method and apparatus for determining a focal-length setting of a lens mounted to a camera is disclosed. In a method for determining a focal-length of a lens mounted to a camera, a distorted image of a scene is captured. A distortion-correction function is applied on the distorted image or on a portion of the distorted image. A most representative distortion-correction function is identified and a current focal-length setting for the lens is identified by correlating the identification to a data compilation.