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:
Sep. 06, 2016
Filed:
Apr. 24, 2014
Axis Ab, Lund, SE;
Jonas Hjelmstrom, Staffanstorp, SE;
Anders Johannesson, Hollviken, SE;
AXIS AB, Lund, SE;
Abstract
The present invention relates to a method () for reducing stray light in an output image of a scene, said method comprising; providing () a camera () comprising a lens assembly (), providing () an aperture unit () having an aperture gate () in an aperture plane being orthogonal to an optical axis (OA) of said lens assembly (), said aperture gate () being adjustable in said aperture plane, acquiring (), by means of said camera (), a plurality of images of said scene, wherein each image of said plurality of images is acquired using an unique aperture gate setting, wherein each of said unique aperture gate settings correspond to a unique combination of a position and a shape of said aperture gate () in said aperture plane, analyzing () said plurality of images for generating data pertaining to a difference in stray light content with respect to said plurality of images, and producing () said output image based on said data pertaining to said difference in stray light content.