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Table 8 Lung field segmentation using other unsupervised methods (FCM and thresholding)

From: Lung segmentation on standard and mobile chest radiographs using oriented Gaussian derivatives filter

 

Overlap

Accuracy

F-score

Precision

Sensitivity

Specificity

FCM on JSRT

mean

0.7896

0.9334

0.8783

0.9202

0.8514

0.9652

std

0.1031

0.0277

0.0734

0.0475

0.1175

0.0257

min

0.2513

0.8239

0.4017

0.6417

0.2589

0.7669

max

0.9048

0.9723

0.9500

0.9897

0.9882

0.9982

FCM on SH: Siemens FD-X

mean

0.8011

0.9396

0.8865

0.8796

0.9044

0.9530

std

0.0904

0.0250

0.0626

0.0813

0.0869

0.0309

min

0.4459

0.8312

0.6168

0.5071

0.4672

0.8224

max

0.9082

0.9804

0.9519

0.9707

0.9822

0.9896

FCM on SH: CR0975

mean

0.7282

0.9146

0.8353

0.8243

0.8661

0.9316

std

0.1282

0.0448

0.1041

0.0871

0.1540

0.0413

min

0.2725

0.7511

0.4283

0.6013

0.3326

0.8295

max

0.8724

0.9618

0.9318

0.9739

0.9879

0.9932

FCM on SH: ADC5146

mean

0.4941

0.8601

0.6464

0.6062

0.7245

0.8895

std

0.1581

0.0627

0.1547

0.1721

0.1823

0.0675

min

0.2045

0.7227

0.3396

0.3398

0.3021

0.7340

max

0.6571

0.9250

0.7931

0.8571

0.9108

0.9733

Thresholding on JSRT

mean

0.7293

0.8963

0.8396

0.7876

0.9117

0.8875

std

0.0980

0.0443

0.0686

0.0944

0.0853

0.0648

min

0.3865

0.7381

0.5575

0.4352

0.4738

0.6374

max

0.9206

0.9682

0.9587

0.9526

0.9973

0.9815

Thresholding on SH: Siemens FD-X

mean

0.7232

0.8993

0.8361

0.7514

0.9539

0.8789

std

0.0908

0.0364

0.0624

0.0993

0.0422

0.0522

min

0.4931

0.8017

0.6605

0.4981

0.7510

0.7499

max

0.8953

0.9665

0.9448

0.9304

0.9967

0.9741

Thresholding on SH: CR0975

mean

0.6376

0.8479

0.7667

0.6738

0.9294

0.8167

std

0.1578

0.0862

0.1290

0.1505

0.1278

0.1200

min

0.2182

0.6509

0.3582

0.3444

0.2526

0.5813

max

0.8810

0.9687

0.9367

0.9306

0.9999

0.9770

Thresholding on SH: ADC5146

mean

0.4502

0.8209

0.6075

0.5233

0.7777

0.8271

std

0.1423

0.0676

0.1492

0.1711

0.1949

0.0796

min

0.1346

0.6709

0.2373

0.1884

0.3206

0.7339

max

0.6230

0.9150

0.7677

0.7306

0.9548

0.9647