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Table 2 Segmentation methods screening

From: Detection, 3-D positioning, and sizing of small pore defects using digital radiography and tracking

Ψcnr

Ψgeo

Method

POHrot × 6

FProt

L

L

Corr

4.0

104

L

L

Radial

4.5

320

L

L

Corr energy

4.0

160

H

L

Corr

3.8

80

H

L

Radial

5.5

16

H

L

Corr energy

5

24

L

H

Corr

3.0

440

L

H

Radial

5.0

400

L

H

Corr energy

2.8

560

H

H

Corr

3.4

400

H

H

Radial

5.3

24

H

H

Corr energy

4.0

480

  1. C n is fixed at 450 for Ψgeo = L and 600 for Ψgeo = H. Corr, cross correlation; Corr energy, cross correlation with energy as given by Equation 7; Radial, radial symmetry.