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Table 1 Area under ROC curve values for fusion images I 1, I 2 and I 3 for series S 1,...,S 6 based on KPCA, PCA and PCA trained with the same reduced training set as KPCA. For each AUC value, the pixel intensities of the fusion images are interpreted as confidence values indicating the existence of suspicious signals at the corresponding positions. The largest AUC value for each case is printed bold.

From: Image fusion for dynamic contrast enhanced magnetic resonance imaging

 

Area-Under-ROC-Curve

 

KPCA

PCA

PCA (reduced set)

Sequence

I 1

I 2

I 3

I 1

I 2

I 3

I 1

I 2

I 3

S 1

0.950

0.972

0.879

0.539

0.993

0.633

0.772

0.972

0.692

S 2

0.918

0.945

0.728

0.727

0.993

0.712

0.852

0.948

0.547

S 3

0.995

0.998

0.710

0.520

0.997

0.926

0.799

0.997

0.747

S 4

0.996

0.985

0.259

0.926

0.999

0.919

0.992

0.985

0.963

S 5

0.959

0.966

0.904

0.693

0.997

0.925

0.814

0.964

0.344

S 6

0.994

0.986

0.706

0.926

0.999

0.919

0.785

0.986

0.802