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.
Image reconstructed using filtered backprojection with a different number of projections. When a low number of projections is used, the object is undersampled, and images exhibit streaks along the direction of backprojected rays. An improved reconstruction is possible when the number of projection angles is increased.
