Table 4 Quantitative comparison results of the ablation study (mean values are shown).MP, FE, and MS denote the Multi-Path Fusion Strategy, Feature Enhancement Module, and Multi-Scale Strategy, respectively. \(\uparrow\) indicates that removing the specified module leads to better performance on this metric.

From: A novel multimodel medical image fusion framework with edge enhancement and cross-scale transformer

Fusion tasks

CT and MRI image fusion

PET and MRI image fusion

SPECT and MRI image fusion

w/o

MP

w/o

FE

w/o

MS

w/

MP&FE&MS

w/o

MP

w/o

FE

w/o

MS

w/

MP&FE&MS

w/o

MP

w/o

FE

w/o

MS

w/

MP&FE&MS

MI

3.2559

3.6647\(\uparrow\)

3.1857

3.6244

3.9962

3.9286

4.0125

4.5539

4.0444

3.9795

4.0698

4.5115

Qabf

0.5679

0.5917

0.6230

0.6497

0.7501

0.7488

0.7513

0.7555

0.7346

0.7323

0.7362

0.7378

VIF

0.5671

0.6576

0.5717

0.6707

0.8233

0.8019

0.8189

0.8788

0.8545

0.8318

0.8607

0.8796

SSIM

0.6451

0.2267

0.6574\(\uparrow\)

0.6554

0.6375

0.6343

0.6434

0.6487

0.6135

0.4847

0.6083

0.6152

Qcb

0.6804

0.4339

0.6874

0.6981

0.6230

0.6295

0.6418

0.6552

0.6788↑

0.4072

0.6748

0.6779

Qcv\(\downarrow\)

1288.90

1625.17

1157.75

1150.07

72.10

75.07

73.03

71.50

51.23

52.61

53.46

50.37