Image Modalities

Indices

Pixel Averaging

DWT

NSCT [29]

NSCT [21]

Proposed method

MR-T1 and MRA

(a1,a2 in

Figure 4)

Entropy

5.7740

6.2799

6.5258

6.3781

6.6196

Mean

44.6319

45.5721

54.1768

44.6239

66.8225

Standard Deviation

42.9244

45.9368

60.6170

57.2812

68.3524

QAB/F

0.3924

0.4784

0.5073

0.5760

0.6098

MR-GAD and CT

(b1,b2 in

Figure 4)

Entropy

3.3717

4.7852

5.1823

5.6291

5.6532

Mean

52.2504

55.3844

59.5492

53.7018

68.9811

Standard Deviation

57.1731

63.4296

76.6243

68.5283

77.5469

QAB/F

0.2729

0.4403

0.4914

0.5162

0.5184

MRI and PET(c1,c2 in

Figure 4)

Entropy

4.1792

4.4304

4.8845

4.8481

5.0438

Mean

25.5341

26.8745

41.5089

27.7156

44.0946

Standard Deviation

37.1539

41.9471

61.4458

52.3839

65.0344

QAB/F

0.4263

0.4573

0.7172

0.5988

0.7669

MRI and CT

(d1,d2 in

Figure 4)

Entropy

5.7946

5.9607

5.9871

6.7113

6.7730

Mean

31.8152

32.0969

35.0844

45.7742

55.8929

Standard Deviation

32.9372

34.9653

56.0279

55.5250

57.1968

QAB/F

0.3906

0.4295

0.5945

0.7202

0.7641

CT and PET(chest)

(e1,e2 in

Figure 4)

Entropy

3.3121

3.7276

4.3933

4.4635

4.4744

Mean

15.9986

16.2869

20.1181

17.7222

22.1684

Standard Deviation

27.4101

29.8332

39.1539

35.7792

40.6165

QAB/F

0.5253

0.5200

0.7665

0.6917

0.7981

MRI and CT

(f1,f2 in

Figure 4)

Entropy

6.3028

6.4563

6.8183

7.0079

7.0111

Mean

48.5624

48.4227

67.7103

50.9031

70.3537

Standard Deviation

30.0012

31.1101

46.2548

43.7342

47.0861

QAB/F

0.3297

0.3632

0.4708

0.5313

0.5411