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Table 3 RMSEs (HU) of reconstructed images of different sampling rates

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

Phantom L1-DL ADSIR GPBB SART
Shepp–Logan
 120 views 1.647 22.62 2.658 34.73
 60 views 2.867 31.72 11.04 94.62
Head slice
 180 views 6.228 15.50 4.282 17.87
 90 views 10.28 25.55 14.78 41.42
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