Biomedical Engineering Reference
In-Depth Information
Fig. 7
An original B-scan (
top
-
left
).
To p
-
right
color-coded inset from the
dashed area
on the
left
. Filter results for the 2D-NCDF (
middle
) and the 3D-NCDF (
bottom
), with the corresponding
color-coded insets on the
right
. All color-coded figures use the same color map and color limits for
ease of comparison. Note the well-defined membrane in the vitreous region
Tabl e 2
Equivalent number of looks (ENL) comparison for the original B-scans and the corre-
sponding filters' results (m ˙ SD)
Healthy
Diseased eyes
Filter
(N
D
10)
AMD (N
D
10)
DR (N
D
10)
CNV (N
D
10)
CME (N
D
2)
Original
00
5.84 ˙
0
0.77
00
5.57 ˙
0
0.69
00
5.53 ˙
0
0.83
0
5.60 ˙
0
0.99
00
6.17 ˙ 0.41
Lee
0
18.39 ˙
0
2.39
0
17.13 ˙
0
1.53
0
16.70 ˙
0
2.60
16.83 ˙
0
4.69
0
19.25 ˙ 2.56
PM
0
71.28 ˙ 11.45
0
66.90 ˙ 10.41
0
61.45 ˙ 15.87
69.46 ˙ 25.73
0
75.33 ˙ 9.66
2D-NCDF
0
39.50
˙
0
5.79
0
37.57
˙
0
3.85
0
34.73
˙
0
7.58
37.06
˙
12.23
0
41.47
˙
5.69
3D-NCDF
111.03
˙
11.99
107.58
˙
0
8.91
102.74
˙
29.42
99.85
˙
33.54
112.67
˙
2.10