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
 
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