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Applied Optics

Applied Optics


  • Vol. 19, Iss. 14 — Jul. 15, 1980
  • pp: 2279–2290

Middle infrared multispectral aircraft scanner data: analysis for geological applications

Anne B. Kahle, Daryl P. Madura, and James M. Soha  »View Author Affiliations

Applied Optics, Vol. 19, Issue 14, pp. 2279-2290 (1980)

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Multispectral middle IR (8–13-μm) data were acquired with an aircraft scanner over Utah. Because these digital image data were dominated by temperature, all six channels were highly correlated. Extensive processing was required to allow geologic photointerpretation based on subtle variations in spectral emittance between rock types. After preliminary processing, ratio images were produced and color ratio composites created from these. Sensor calibration and an atmospheric model allowed determination of surface brightness, temperature, emittance, and color composite emittance images. The best separation of major rock types was achieved with a principal component transformation, followed by a Gaussian stretch, followed by an inverse transformation to the original axes.

© 1980 Optical Society of America

Original Manuscript: December 26, 1979
Published: July 15, 1980

Anne B. Kahle, Daryl P. Madura, and James M. Soha, "Middle infrared multispectral aircraft scanner data: analysis for geological applications," Appl. Opt. 19, 2279-2290 (1980)

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