Image Processing Reference
In-Depth Information
Fig. 2.8.
Cross section and projection: (
a
) Cross section and projection (1); (
b
)
cross section and projection (2).
Remark 2.4 (Cross section and projection).
Two terms,
cross section
and
projection
, are used also in different ways as follows (Fig. 2.8).
Definition 2.1.
Consider a continuous one-valued real function
f
(
x, y, z
)and
arealvalue
t
(called
level
or
threshold value
). Then,
cross section
of
f
at a
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