Table 7 Effect of subpixel refinement levels on segmentation metrics.

From: 3D CSFA-UNet: a unified attention-driven deep learning framework for accurate knee MRI segmentation and osteoarthritis severity classification

Subpixel level

DSC (%)

IoU (%)

ASD (mm)

Hd95 (mm)

Time (s)

1

94.20

89.50

1.25

4.80

0.90

2

96.10

92.40

0.95

3.30

1.10

3

97.60

94.80

0.65

2.05

1.35

4

98.10

96.26

0.45

1.85

1.70

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