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Fig. 3 | BioMedical Engineering OnLine

Fig. 3

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

Fig. 3

The reconstruction results of the Shepp–Logan phantom. ad The image reconstructed by L1-DL, ADSIR, GPBB and SART respectively with 120 scanning views data; eh the difference between the reconstructed image (ad) and the original image (OI); il the image reconstructed by L1-DL, ADSIR, GPBB and SART respectively with 60 scanning views data; mp the difference between the reconstructed image (il) and the original image (OI)

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