The basic problem with the back-projection algorithm is: I. the image is blurred and not useful
II. it compares assumptions with measured values
III. the image suffers from the star pattern artifact

Question

Quizplus · Accepted Answer

The problem with the back-projection technique is that it does not produce a sharp image of the object and the typical star pattern occurs because points outside a high-density object receive some of the back-projected intensity of that object.

The Basic Problem with the Back-Projection Algorithm Is: I