Biomedical Engineering Reference
In-Depth Information
Figure 9.21:
Change of the level set function with time resulting in different
curves.
Figure 9.22:
Topology change of curves with time.
9.5.2 Curve Evolution with Level Sets
To get an equation describing the change of the curve or the front with time, we
will start with the asssumption that the level set function is zero at the front as
follows:
φ
(
x
,
y
,
t
)
=
0 f
x
,
y
)
∈
,
(9.50)
