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. 23, 2021
Filed:
Aug. 30, 2017
Flir Systems Ab, Täby, SE;
Stefan Olsson, Stockholm, SE;
FLIR SYSTEMS AB, Täby, SE;
Abstract
A method and a thermal imaging device for correcting fixed pattern noise of in a video sequence of thermal images captured using a thermal imaging system are provided. The method includes receiving a sequence of thermal images captured using a thermal imaging system. The method also includes calculating a thermal image average of a plurality of the received thermal images and calculating pixel difference values between a received thermal image and the thermal image average. The method evaluates the pixel difference values in relation to an updating condition and calculates fixed pattern noise correction terms for the pixel difference values for which the updating condition is fulfilled. The method also includes correcting pixel values of a subsequently received thermal image with the fixed pattern noise correction terms to generate a sequence of thermal images having corrected fixed pattern noise.