Biomedical Engineering Reference
In-Depth Information
(a)
(c)
12
12
10
10
8
8
6
6
4
4
4
2
0
2
4
4
2
0
2
4
y (cm)
y (cm)
(d)
(b)
0
500
1000
0
500
1000
time point
time point
Fig. 5.6
Results of source reconstruction experiments using the Saketini algorithm.
a
The recon-
structed source power map on the plane at
x
=
0cm.
b
The reconstructed time courses of the
three sources: The time courses of the first, second, and third sources are shown in the
top
,
middle
,
and
bottom panels
, respectively.
c
The reconstructed source power map on the plane at
x
=
0cm,
obtained using the Champagne algorithm.
d
The reconstructed time courses of the three sources,
obtained using the Champagne algorithm. The locations
(
y
,
z
)
of the first, second, and third sources
were set to
(
−
1
.
8
,
9
.
8
)
,
(
2
.
0
,
9
.
8
)
,and
(
1
.
3
,
6
.
0
)
, respectively
of the voxels closest to the three sources are shown in Fig.
5.6
b. The source power
map and source time courses obtained using the Champagne algorithm are shown
in Fig.
5.6
c, d for comparison. The results show that both algorithms are capable of
providing accurate spatiotemporal reconstruction of the three sources.
5.7 Appendix to This Chapter
5.7.1 Proof of Eq.
(
5.84
)
We present the proof of Eq. (
5.84
), which is rewritten as
ʨ
¯
A
T
R
yu
¯
A
T
A
T
]=
¯
A
ʛ
−
1
ʛ
−
1
E
A
[
A
ʨ
+
L
=
+
L
.
