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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