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.

Date of Patent:
May. 22, 2018

Filed:

Feb. 06, 2017
Applicant:

Flir Systems Ab, Täby, SE;

Inventors:

Emanuel Johansson, Hjarup, SE;

Odd Larson, Taby, SE;

Stefan Olsson, Stockholm, SE;

Assignee:

FLIR Systems AB, Taby, SE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/33 (2006.01); H04N 5/235 (2006.01); G06T 7/00 (2017.01);
U.S. Cl.
CPC ...
H04N 5/33 (2013.01); G06T 7/0002 (2013.01); H04N 5/2352 (2013.01); G06T 2207/20048 (2013.01);
Abstract

Various techniques are provided for a stray light compensation method for an infrared (IR) camera. For example, a stray light compensation method includes: capturing an IR image of a scene by an IR camera, generating a fixed pattern noise estimate FPNestfor time t0 using the captured IR image and a stray light model associated with the IR camera, and performing a fixed pattern noise (FPN) compensation of the captured IR image based on said FPNestto obtain a stray light compensated IR image. The fixed pattern noise estimate may be generated through operations in a frequency domain representation of the captured IR image and the stray light model according to one or more embodiments.


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