Tomograpchic Imaging with Full Data

This sweeping movement was used in first-generation CT scanners, including those built by Hounsfield.

This is the so-called parallel-beam geometry of tomographic imaging. The combination of X-ray source and detector is rotating around the object, collecting projection data from many directions. The data is organized as columns in the so-called sinogram, namely the image shown on the right.

Tomographic reconstruction method called filtered back-projection applied to the parallel-beam data collected from the two-dimensional Shepp-Logan phantom (a model of a cross-section of human head).

This is the so-called parallel-beam geometry of tomographic imaging. The combination of X-ray source and detector is rotating around the object, collecting projection data from many directions. The data is organized as columns in the so-called sinogram, namely the image shown on the right.

Tomographic reconstruction method called filtered back-projection.