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

Boris Zhukov; Dieter Oertel; Peter Strobl; Mathias Kneubuehler; Michael E. Schaepman

doi:10.1117/12.366309

27 October 1999 Absolute radiometric calibration of the DAIS-7915 thermal channels using sub-pixel targets

Boris Zhukov, Dieter Oertel, Peter Strobl, Mathias Kneubuehler, Michael E. Schaepman

Proceedings Volume 3753, Imaging Spectrometry V; (1999) https://doi.org/10.1117/12.366309
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

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.

Citation Download Citation

Boris Zhukov, Dieter Oertel, Peter Strobl, Mathias Kneubuehler, and Michael E. Schaepman "Absolute radiometric calibration of the DAIS-7915 thermal channels using sub-pixel targets", Proc. SPIE 3753, Imaging Spectrometry V, (27 October 1999); https://doi.org/10.1117/12.366309

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