Learned Shrinkage Approach for Low-Dose Reconstruction in Computed Tomography

<table>Error maps for the lesion detectability test, built with respect to the reference image. Upper to lower rows, left to right: our method, PWLS, ATM, and FBP images. Darker shade corresponds to higher error. The lesion is not observed in any version, which means it is recovered correctly by all the methods; however, in FBP image the lesion is obscured by streaks.</table>

International Journal of Biomedical Imaging

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Figure 18

Figure 18: Learned Shrinkage Approach for Low-Dose Reconstruction in Computed Tomography 