Algorithms

SNR = 3 dB

SNR = 5 dB

SNR = 10 dB

Th

P D

P F A

CU

USR

Th

P D

P F A

CU

USR

Th

P D

P F A

CU

USR

Fixed

1

0.99

0.0786

40

18.5

1

1

0.0786

60

30

1

1

0.0786

20

10

Modified Otsu

3.23

0.37

2.46E−06

70

30.5

2.71

0.9994

6.15E−05

80

35

5.36

1

1.79E−14

90

40

ROHT

4.7

8.33E−03

1.61E−11

100

42.5

3.73

0.9643

6.89E−08

100

35

6.61

1

4.40E−21

100

30

FOST

4.4

0.02

2.45E−10

100

40.5

3.48

0.984

4.17E−07

100

45

6.22

1

6.78E−19

90

30

FCME

0.55

0.99

0.2195

30

14

0.326

1

0.3231

30

15

2.2

1

9.31E−04

50

25