836
VALUES OF P(tjx) AND P(x)
P(x)
CROP TYPE
Late Spring Image (1000 Degree-Days)
Photo-Density Range
.10 .21 .31 .41 .51 .61 .71
.20 .30 .40 .50 .60 .70 .80
.81
1.0
.36
Spring Wheat
.01
.01
.25 .75
.01
.01
.01
.01
.03
Oats
.01
.20
. 0 .01
.01
.01
.01
.01
.05
Barley
.01
.01
.01 .50
.50
.01
.01
.01
.15
Sod
.01
.01
.01 .01
.05
.45
.45
.05
.41
Summer Fallow
.01
.01
.01 .01
.01
.01
.50
.50
Late Summer Image (2000 Degree-Days)
P(x)
.36
Spring Wheat
.60
.35
.05 .01
.01
.01
.01
.01
.03
Oats
.05
.80
.15 .01
.01
.01
.01
.01
.05
Barley
.01
.45
.55 .01
.01
.01
.01
.01
.15
Sod
.01
.01
.15 .84
.02
.01
.01
.01
.41
Summer Fallow
.01
.01
.01 .01
.01
.01
.20
.80
FIGURE 6. P(t ± |x)
and
P00
values for each crop type.
minimum P(t^|x) value of D1
was used
to prevent driving
P(x)P(T^|x) calculations irreversibly to zero.
Given: Photo-Density Value
.38 on
1000 DD
Image and .20 on 2000 DD
image
P(x) P(t|x)=
Candidate Crops
P(x) P(ti, t 2 |x)
PixjT)
Spring Wheat
0.054
0.98
Oats
0.001
0.02
Barley
0.000
0.0
Sod
0.000
0.0
Summer Fallow
0.000
0.0
jZjPOO P(T ± |x)
0.055
Z
- 1.0
FIGURE 7. Example of probabilistic key internal structure
illustrating calculations.