Digital Signal Processing Reference
In-Depth Information
(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
(i)
FIGURE 3.23
Filtering of balloon corrupted by component-correlated contaminated Gaussian noise: (a) origi-
nal, (b) noisy, (c) MED, (d) MED
v
(
L
2
)
, (e) MED
v
(
L
1
)
, (f) VDF, (g) DDF, (h) FMED, and (i) FMED
v
filtered images. (Original color images are depicted here in black and white.)
vector median filtering.
43
The FMED
v
filter window, for each face
i
of the
mesh, includes itself and its neighborhood, which is the set of faces that have
a common edge with face
i
. Because the information in a normal vector is
represented by the vector orientation (angle) rather than length, we adopt
the angle between vectors
40
as the vector difference metric used in the fuzzy
relation operator.
Search WWH ::
Custom Search