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EJNMMI Research

Table 4 Calculated values of the quality of registration (score) and the (dis)similarity parameters of corresponding ldCT and hdCT image pairs in case of γ masking technique (data are rounded to two significant digits)

From: Automated procedure assessing the accuracy of HRCT–PET registration applied in functional virtual bronchoscopy

Pat

Score

(dis)similarity parameter

Pearson

MI

NMI

HKL

L1norm * 1e−7

L2norm2 * 1e−10

p01

54

0.86

0.44

1.21

0.44

20.55

13.61

p03

61

0.25

0.25

1.1

0.74

4.1

2.07

p04

59

0.74

0.44

1.21

0.62

15.1

10.4

p05

52

0.32

0.32

1.11

0.55

8.18

5.42

p06

52

0.31

0.31

1.11

0.74

5.89

3.45

p07

62

0.24

0.25

1.09

0.78

4.36

2.34

p08

60

0.28

0.28

1.1

0.8

4.71

2.45

p09

51

0.19

0.19

1.08

0.85

3.11

1.41

p10

37

0.19

0.2

1.09

0.76

4.75

2.5

p11

49

0.24

0.22

1.1

0.79

6.8

4.1

p12

62

0.47

0.47

1.17

0.79

5.35

2.88

p13

59

0.17

0.18

1.07

0.68

6.47

4.21

p14

30

0.15

0.15

1.06

0.75

7.03

4.15

p15

30

0.1

0.1

1.04

0.75

4.67

2.34

p16

53

0.41

0.31

1.13

0.69

10.52

6.87

p17

58

0.34

0.34

1.12

0.69

7.12

4.62

p18

50

0.2

0.2

1.08

0.84

3.83

1.58

p20

54

0.21

0.21

1.08

0.7

8.24

5.2

p21

60

0.43

0.43

1.17

0.81

2.47

1.08

p22

62

0.41

0.41

1.19

0.8

3.97

1.75

p23

62

0.22

0.22

1.08

0.62

10.57

7.32

p25

49

0.26

0.26

1.09

0.44

7.8

5.08

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