EP 2898669 A1 20150729 - PIXEL-WISE NOISE REDUCTION IN THERMAL IMAGES
Title (en)
PIXEL-WISE NOISE REDUCTION IN THERMAL IMAGES
Title (de)
PIXELWEISE RAUSCHVERMINDERUNG BEI THERMISCHEN BILDERN
Title (fr)
RÉDUCTION DU BRUIT DANS LE SENS DES PIXELS DANS DES IMAGES THERMIQUES
Publication
Application
Priority
- US 201213622178 A 20120918
- US 201261745504 P 20121221
- US 201261745489 P 20121221
- US 2013060216 W 20130917
Abstract (en)
[origin: WO2014047075A1] Methods and systems are provided to reduce noise in thermal images. In one example, a method includes receiving an image frame comprising a plurality of pixels arranged in a plurality of rows and columns. The pixels comprise thermal image data associated with a scene and noise introduced by an infrared imaging device. The image frame may be processed to determine a plurality of column correction terms, each associated with a corresponding one of the columns and determined based on relative relationships between the pixels of the corresponding column and the pixels of a neighborhood of columns. In another example, the image frame may be processed to determine a plurality of non-uniformity correction terms, each associated with a corresponding one of the pixels and determined based on relative relationships between the corresponding one of the pixels and associated neighborhood pixels within a selected distance.
IPC 8 full level
H04N 5/33 (2006.01); H04N 5/365 (2011.01)
CPC (source: EP)
G01J 5/80 (2022.01); G06T 5/50 (2013.01); G06T 5/70 (2024.01); H04N 23/23 (2023.01); H04N 25/677 (2023.01); G06T 2207/10016 (2013.01); G06T 2207/10048 (2013.01); G06T 2207/20182 (2013.01); H04N 25/674 (2023.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014047075 A1 20140327; CN 104782116 A 20150715; CN 104782116 B 20161214; CN 104813652 A 20150729; CN 104813652 B 20180309; EP 2898669 A1 20150729; EP 2898670 A1 20150729; EP 2898670 B1 20181010; WO 2014047076 A1 20140327
DOCDB simple family (application)
US 2013060210 W 20130917; CN 201380059705 A 20130917; CN 201380059706 A 20130917; EP 13766872 A 20130917; EP 13767228 A 20130917; US 2013060216 W 20130917