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

The false positives were typically associated with bare rock drainages in the
imagery when they had an MF score between 16 and 25 though values of this range were
also associated with what appeared to be trails. Pixels with MF scores for this
endmember that represented greater than 25% of the pixel were always associated with
bare lithified rock features, typically steeply sloped and unlikely to harbor any trails due
to terrain. When the camp road endmember was run on the second data set, similar
results were obtained. Figure 31 shows results of the camp road endmember for both the
3.0 m pixel resolution data set (f110512t01p00r08) (inset A) and the 15.2 m pixel
resolution data set (inset B).
The higher resolution image had positive matches for target material at 9–11%,
very similar to the results of the f110512t01p00r07 data set, and the latter
(f110623t01p00r10) had positive matches at 4–9% target material (Figure 31).
A B
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.
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