Rubus niveus (hill raspberry) on Isla Santa Cruz and Isla San Cristóbal

 

SPECTRAL UNMIXING:  LINEAR MIXTURE MODELING

 

Figure 1.  Linear mixture modeling of Rubus niveus (hill raspberry) on Isla Santa Cruz from a 2000 SPOT image.

 

 

 



Figure 2.  Linear mixture modeling of Rubus niveus (hill raspberry) on Isla San Cristóbal from a 2000 SPOT image.

 

 

 

Psidium guajava on Isla Isabela

 

SPECTRAL UNMIXING:  COMPARISON OF LINEAR AND NONLINEAR MIXTURE MODELING

 

 

Figure 3.  Comparison of linear and nonlinear mixture modeling of Psidium guajava on Isla Isabela from a 2002 Hyperion image.  Percentage P. guajava based on (a) linear mixture modeling using spectral end members generated from the minimum noise fraction (MNF) transformation of the Hyperion image and (b) nonlinear mixture modeling from a neural network analysis using training data generated from the pixel-based classification of the QuickBird image.