Table 1 SNR results when threshold selection is applied

N1

4.88

13.98

14.35

N2

4.29

8.92

9.54

N3

−0.20

13.16

13.20

N4

4.95

13.07

13.24

N5

4.27

9.73

9.69

N6

−0.85

12.56

12.93

N7

0.30

6.22

7.06

N8

3.97

11.31

12.27

N9

0.33

7.86

8.36

N10

4.25

12.08

12.61

N11

4.04

10.81

11.14

N12

−0.86

10.89

11.32

N13

3.69

9.79

10.75

N14

2.67

8.34

9.12

N15

1.36

7.63

7.84

N16

10.69

15.37

15.39

N17

4.41

10.26

10.31

Average

3.07

10.70

11.12