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dc.contributor.authorNugent, Paul W.
dc.contributor.authorShaw, Joseph A.
dc.contributor.authorPust, Nathan J.
dc.date.accessioned2015-02-05T17:46:09Z
dc.date.available2015-02-05T17:46:09Z
dc.date.issued2014-12
dc.identifier.citationNugent, Paul W., Joseph A. Shaw, and Nathan J. Pust. Radiometric calibration of infrared imagers using an internal shutter as an equivalent external blackbody. Optical Engineering. December 2014. Pages 123106. https://dx.doi.org/10.1117/1.OE.53.12.123106en_US
dc.identifier.issn0091-3286
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/8815
dc.description.abstractAdvances in microbolometer long-wave infrared (LWIR) detectors have led to the common use of infrared cameras that operate without active temperature stabilization, but the response of these cameras varies with their own temperature. Therefore, obtaining quantitative data requires a calibration that compensates for these errors. This paper describes a method for stabilizing the camera’s response through software processing of consecutive images of the scene and images of the camera’s internal shutter. An image of the shutter is processed so that it appears as if it were viewed through the lens. The differences between the scene and the image of the shutter treated as an external blackbody are then related to the radiance or temperature of the objects in the scene. This method has been applied to two commercial LWIR cameras over a focal plane array temperature range of ±7.2°C, changing at a rate of up to ±0.5°C/min. During these tests, the rms variability of the camera output was reduced from ±4.0°C to ±0.26°C.en_US
dc.description.sponsorshipThis research was performed with funding from the US National Science Foundation through Award ARC-1108427.en_US
dc.subjectSystem scienceen_US
dc.subjectOpticsen_US
dc.titleRadiometric calibration of infrared imagers using an internal shutter as an equivalent external blackbodyen_US
dc.typeArticleen_US
mus.citation.extentfirstpage123106en_US
mus.citation.issue12en_US
mus.citation.journaltitleOptical Engineeringen_US
mus.citation.volume53en_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.identifier.doi10.1117/1.OE.53.12.123106en_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.collegeCollege of Engineering
mus.relation.departmentElectrical & Computer Engineering.en_US
mus.relation.universityMontana State University - Bozemanen_US


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