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Absolute radiometric calibration of the DAIS-7915 thermal channels using sub-pixel targets


Zhukov, Boris; Oertel, Dieter; Strobl, Peter; Kneubühler, Mathias; Schaepman, Michael E (1999). Absolute radiometric calibration of the DAIS-7915 thermal channels using sub-pixel targets. Proceedings of SPIE, 3753 :463-474.

Abstract

Utilization of sub-pixel targets for radiometric calibration of airborne and space-borne imaging sensors involves the uncertainty of their contribution to the pixel-integrated radiance. This contribution depends not only on the target area but also on an unknown location of the sub-pixel target within a sensor pixel. A technique is proposed to retrieve both the target radiance and its sub-pixel location from the target image, taking into account the effects of the sensor point spread function. The technique was used for in-flight calibration of the thermal channels of the airborne imaging spectrometer DAIS-7915.

Abstract

Utilization of sub-pixel targets for radiometric calibration of airborne and space-borne imaging sensors involves the uncertainty of their contribution to the pixel-integrated radiance. This contribution depends not only on the target area but also on an unknown location of the sub-pixel target within a sensor pixel. A technique is proposed to retrieve both the target radiance and its sub-pixel location from the target image, taking into account the effects of the sensor point spread function. The technique was used for in-flight calibration of the thermal channels of the airborne imaging spectrometer DAIS-7915.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Geography
Dewey Decimal Classification:910 Geography & travel
Language:English
Date:18 July 1999
Deposited On:14 Jul 2014 07:15
Last Modified:05 Apr 2016 17:56
Publisher:SPIE - International Society for Optical Engineering
ISSN:0277-786X
Publisher DOI:https://doi.org/10.1117/12.366309
Official URL:http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=994869

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