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Discrimination between terrain types and different types of vegetation based on a cost-effective UAV NIR spectroscopy. (a) Reference NIR spectral signatures associated to the elements of terrain and vegetation; (b) the reference Vis (RGB) multispectral image; (c,d) classification maps derived from NIR spectral analysis using different methods of classification for image generation. Adopted in agreement with CC BY 4.0 license, from Ref. [128].
