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The analysis of hyperspectral data using Savitzky-Golay filtering-practical issues. 2

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4 Author(s)
King, R.L. ; Remote Sensing Technol. Center, Mississippi State Univ., MS, USA ; Ruffin, C. ; LaMastus, F.E. ; Shaw, D.R.

In this study, derivative spectroscopy is applied to the analysis of hyperspectral data in order to extract absorption band positions (wavelengths) directly from the reflectance data of several vegetation classes. Derivative spectroscopy is applied to several hyperspectral signatures taken using two different portable spectroradiometers. The Savitzky-Golay method for smoothing and differentiation is used to implement a zero crossing method from derivative spectroscopy, resulting in a technique to directly detect absorption band positions from reflectance spectra. The results of the Savitzky-Golay filtering technique are shown valuable when applied to hyperspectral signatures from cotton, sicklepod, and bare soil

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Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International  (Volume:1 )

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