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Table 6 RMSEs (HU) of reconstructed images of different regularization parameters

From: Low-dose CT reconstruction via L1 dictionary learning regularization using iteratively reweighted least-squares

Noise level

RMSE (HU)

λ

0.2λ

5λ

None

16.18

10.25

25.18

2 million photons

24.81

17.85

27.11

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BioMedical Engineering OnLine

ISSN: 1475-925X

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