Biomedical Engineering Reference
In-Depth Information
(a)
(b)
12
10
8
6
5
0
5
5
0
5
y (cm)
y (cm)
Fig. 7.6
Results of imaging envelope correlation on the plane
x
=
0 cm. The seed was set at the
second source location.
a
Image of envelope correlation.
b
Image of residual envelope correlation
(a)
(b)
14
14
13
13
12
12
11
11
10
10
9
9
8
8
7
7
6
6
6
4
2
0
2
4
6
6
4
2
0
2
4
6
y (cm)
y (cm)
(c)
6
4
2
0
2
4
6
y (cm)
Fig. 7.7
Results of statistical thresholding of the alpha-band source coherence images.
a
Magnitude
coherence image.
b
Imaginary coherence image.
c
Corrected imaginary coherence image. Statistical
thresholding using the surrogate data method described in Sect.
7.8
was applied with the number of
surrogate data set to 200 and the level of the statistical significance set to 0.99
