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EURASIP Journal on Advances in Signal Processing

Table 15 Performance analysis of postclassifiers in terms of weighted delay and quality value

From: Performance analysis of wavelet transforms and morphological operator-based classification of epilepsy risk levels

Methods

Wavelets

SVD optimization

EM optimization

MEM optimization

Weighted delay (s)

Quality value

Weighted delay (s)

Quality value

Weighted delay (s)

Quality value

Hard threshold

Haar

2.14

23.5

2.431

18.32

2.36

19.24

dB2

2.017

23.82

2.23

19.72

2.14

20.49

dB4

1.974

23.15

2.11

21.32

2.01

22.11

Sym8

2.038

23.37

2.2

19.52

2.18

20.3

Soft threshold heursure

Haar

1.94

20.16

2.19

20.12

2.08

20.85

dB2

2.82

16.01

2.37

20.24

2.27

20.54

dB4

2.41

19.99

2.31

19.79

2.27

20.57

Sym8

2.16

18.95

2.26

20.44

2.13

22

Soft threshold minimax

Haar

1.7

19.36

2.15

20.09

2.06

22.54

dB2

2.23

19.39

2.3

18.87

2.16

20.41

dB4

1.97

20.13

2.17

19.97

2.14

20.66

Sym8

2.51

19.51

2.27

20.2

2.22

20.73

Soft threshold rigsure

Haar

1.77

20.44

2.01

20.32

2.1

21.42

dB2

1.62

18.77

2.07

19.4

2.04

19.95

dB4

1.53

16.74

2.08

20.42

2.08

22.04

Sym8

1.65

19.51

2.18

20.02

2.09

21.06

Soft threshold sqtwolog

Haar

2.08

17.82

2.34

18.77

2.3

20.22

dB2

3.25

16.73

2.42

19.17

2.36

20.1

dB4

2.76

19.1

2.37

19.62

2.36

19.35

Sym8

2.97

17.52

2.41

18.74

2.39

19.97

Morphological filters

 

2.26

20.62

2.2

19.52

2.18

20.3

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