Fig. 10From: Leaf area index estimation model for UAV image hyperspectral data based on wavelength variable selection and machine learning methodsDistribution of characteristic bands selected by using different variable extraction algorithms. SPA Successive projections algorithm, CARS Competitive adaptive reweighed sampling, CARS_SPA competitive adaptive reweighed sampling combined with successive projections algorithm, FD First derivative, Reflectance: The original reflectivity curve. B Blue, G Green, Y Yellow, O Orange, R Red, NIR Near-infraredBack to article page