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Table 1 Data dimension at each hierarchical stage

From: Deep learning tomographic reconstruction through hierarchical decomposition of domain transforms

Hierarchical stage (L)

Data dimension

#depth bins (\({N}_{t}\))

#proj. angles (\({N}_{\theta }\))

#radial bins (\({N}_{r}\))

L = 0 (line integrals)

1

512

512

L = 1

2

256

512

L = 2

8

64

512

L = 3

32

16

512

L = 4

128

4

512

L = 5 (image voxels)

512

1

512