MEAN CLASSIFICATION ACCURACY 
Figure 4: 12-pixel mean PMI spectra from a sugarbeet field located within cameras 4 and 5 
before (a) and after (b) radiometric camera alignment. 
R 
E 
F 
L 
E 
C 
T 
R 
N 
C 
E 
l 
Corn reflectance spectra acquired with the 
Spectrascan ground-based spectrometer for 
viewing angles at ±24.3° (acquisition date: 
September 7, 1982, solar zenith angle: 46 
degrees, solar azimuth: 139 degrees, scan 
azimuth angle: 332 degrees). 
NUMBER OF BANDS 
Figure 6: Mean classification accuracy as a function 
of number of bands for the band-moment and 
GEOBOTANY data sets. 
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