On decision making in tomography

The author argues that although decision-making operations are not viewed as part of computerized tomography proper, it is possible to incorporate decision-making operations into reconstruction algorithms. Moreover, doing that will result in solutions more precise than the solutions obtained with the traditional two-step approach. The discussion attempts to demonstrate that it is possible to develop algorithms producing various attributes of reconstructed images or other images related to them directly from the projection data. These ideas are illustrated through examples.<>