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.
Left: reconstructed image from noiseless projections of the continuous Shepp–Logan phantom. Right: reconstructed image from noiseless projections of the discrete, pixelized Shepp–Logan phantom. Both reconstructions are obtained from the conjugate gradients algorithm for minimizing the quadratic data-fidelity term in equation (10). The gray scale is [0.95, 1.15].
