Reconstruction

The word tomography derives from the Greek word tomos meaning section, so the process of tomography involves the generation of narrow sections through an object. It is assumed that this is a non-invasive process which is performed using sensors outside the object of interest. In many applications sequences of measurements made in 2D are combined to produce a pseudo 3D image. The process is when applied to X-rays is referred to as Computerised Axial Tomography (CAT or CT)