A proposed algorithm for adaptive computer tomography

We propose a quite simple, recursive algorithm of image reconstruction in computer tomography (CT) based only on Bayesʹ theorem. Object image estimation is carried out with detection or coincidence event-base for emission type CT, and projection event-base for transmission type CT. This event-base method implies, in principle, real-time image reconstruction in CT, and provides a new paradigm called structure adaptive CT, such as parameter adjustable and regions-of-interest CTs.