Spectral Unmixing Applied to Desert Soils for the - Naval ...

is possibly due to ozone that was not fully removed by the atmospheric
correction…………. ........................................................................................53
Figure 27. This figure shows the true color image (A) and the associated MF verses
infeasibility scatterplot (C) being utilized to analyze an imagery derived
endmember and see what type of score distribution is associated with
areas of the highest pixel concentration. In B, Yellow ranges are areas
with low infeasibility and high MF scores highlighted in the scatterplot,
and represent the most likely areas for target mixtures. The range
associated with these areas contains 30–76 % of the endmember. ..................55
Figure 28. The above shows some of the imagery derived endmembers from the
Colorado AVIRIS flight log f110512t01p00r07 where the endmember has
been identified as a Zunyite mixture. The continuum removal allows us to
see how absorption feature depth differences show a similar pattern to
those collected with the ASD spectrometer in figure 24 at ~500
nanometers, 1125 nanometers, and 2200 nanometers. ....................................56
Figure 29. This figure shows the USGS spectral library entry for Zunyite and the
imagery derived endmember mean class 9 thought to be a Zunyite mix.
Both spectra are shown with the continuum removed. ....................................57
Figure 30. The above figure shows the MF verses Infeasibility scatter plot for the
camp road endmember result plotted on a grayscale image of the
f110512t01p00r07 data set with B being the zoomed in version of A. Red
pixels represent target material with MF scores between 10 and 49%. The
NE to SW trending pixels are thought to be a trail and have MF scores of
11–12%, the NW to SE trending pixels are along a drainage and have MF
scores of 16–22% but may still be trail material..............................................62
Figure 31. This image shows the camp road endmember MF verses infeasibility
image for the f110512t01p00r08 (A) andf110623t01p00r10 (B) data sets.
The result is similar to that of the camp road endmember in the
f110512t01p00r07 in that the target material identified as road had
between 9 and 11% target fill in the pixel for A and 4 to 9% for B. ...............63
Figure 32. The image shows the MF vs infeasibility scatterplot and target material
image of the user supplied adjacent to tread endmember in the
f110512t01p00r07 data set. Detected target material corresponds with red
areas (regions with highest MF score and lowest infeasibility) suggesting
they are the best matches. ................................................................................64
Figure 33. This figure shows the adjacent to tread endmember results with MF scores
of 5–52% using the f110512t01p00r08 for a repeatability test. Areas of
highest target material concentrations are associated with regions of
unconsolidated material on steep sides of lithified rock structures. Areas
surrounding the rock structures are thought to have less target material
because they are flat and may be more settled. ................................................66
Figure 34. This figure is the spectra for three imagery derived mean class
endmembers thought to be BSCs and the spectrum for an endmember
believed to be soil based on criteria established previously from Weber et
al (2008) and the results of the spectral libraries with the continuum
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