Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Reconstructed images of the Catphan® 600 phantom. Images in the left and right columns correspond to the reconstructions with the FDK and the regularized iterative reconstruction algorithms, respectively. The first row is the reference case, the reference ε0 and λ0 are displayed in the right column. For the other two cases, the estimated ε and the selected λ are displayed in the corresponding regularized reconstructions. Display window: [0.1 0.3]cm−1.
